Страница 21 - гдз по алгебре 9 класс дидактические материалы Мерзляк, Полонский

Алгебра, 9 класс Дидактические материалы, авторы: Мерзляк Аркадий Григорьевич, Полонский Виталий Борисович, Рабинович Ефим Михайлович, Якир Михаил Семёнович, издательство Просвещение, Москва, 2015, голубого цвета

Авторы: Мерзляк А. Г., Полонский В. Б., Рабинович Е. М., Якир М. С.

Тип: Дидактические материалы

Серия: алгоритм успеха

Издательство: Просвещение

Год издания: 2015 - 2026

Цвет обложки: голубой

ISBN: 978-5-09-079540-1

Cтраница 21

App\Models\BookPage {#1003 // resources/views/models/book_page/default.blade.php
  #connection: "mysql"
  #table: "book_pages"
  #primaryKey: "id"
  #keyType: "int"
  +incrementing: true
  #with: []
  #withCount: []
  +preventsLazyLoading: false
  #perPage: 15
  +exists: true
  +wasRecentlyCreated: false
  #escapeWhenCastingToString: false
  #attributes: array:21 [
    "id" => 1358226
    "created_at" => "2026-04-10 13:58:26"
    "updated_at" => null
    "field_page_start" => "21"
    "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/page-21"
    "field_display_title" => "21"
    "field_folder" => "1"
    "field_image_name" => "21"
    "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1008
      #items: []
      #escapeWhenCastingToString: false
    }
    "field_weight" => "0"
    "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1041
      #items: array:1 [
        0 => App\Models\Book {#1006
          #connection: "mysql"
          #table: "books"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: false
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:50 [
            "id" => 826
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_tree_default_status" => "tasks"
            "field_pages_status" => null
            "field_subject" => Illuminate\Database\Eloquent\Collection {#1009
              #items: array:1 [
                0 => App\Models\Term {#1007
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:10 [ …10]
                  #original: array:10 [ …10]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_class" => Illuminate\Database\Eloquent\Collection {#1010
              #items: array:1 [
                0 => App\Models\Term {#1011
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_publisher" => Illuminate\Database\Eloquent\Collection {#1012
              #items: array:1 [
                0 => App\Models\Term {#1013
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_author" => Illuminate\Database\Eloquent\Collection {#1014
              #items: array:4 [
                0 => App\Models\Term {#1015
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:12 [ …12]
                  #original: array:12 [ …12]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                1 => App\Models\Term {#1016
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:12 [ …12]
                  #original: array:12 [ …12]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                2 => App\Models\Term {#1017
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:12 [ …12]
                  #original: array:12 [ …12]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                3 => App\Models\Term {#1018
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:12 [ …12]
                  #original: array:12 [ …12]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1019
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_book_type" => Illuminate\Database\Eloquent\Collection {#1020
              #items: array:1 [
                0 => App\Models\Term {#1021
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:10 [ …10]
                  #original: array:10 [ …10]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_country" => Illuminate\Database\Eloquent\Collection {#1022
              #items: array:1 [
                0 => App\Models\Term {#1023
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_city" => Illuminate\Database\Eloquent\Collection {#1024
              #items: array:1 [
                0 => App\Models\Term {#1025
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_series" => Illuminate\Database\Eloquent\Collection {#1026
              #items: array:1 [
                0 => App\Models\Term {#1027
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:8 [ …8]
                  #original: array:8 [ …8]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_umk" => Illuminate\Database\Eloquent\Collection {#1028
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1029
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1030
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_publication_number" => "5"
            "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1031
              #items: array:1 [
                0 => App\Models\Term {#1032
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1033
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_under_the_edition_degree" => null
            "field_cover_description" => null
            "field_publication_year" => "2015"
            "field_publication_year_until" => null
            "field_part" => ""
            "field_part_writing" => ""
            "field_second_foreign_language" => null
            "field_for_whom" => "Пособие для учащихся общеобразовательных организаций"
            "field_allowed" => null
            "field_reserve_field" => null
            "field_link_to_source" => null
            "field_tasks_count" => "816"
            "field_priority" => null
            "field_default_folder" => "/algebra_09/merzljak-dm/"
            "field_isbn" => "978-5-09-079540-1"
            "field_cover" => array:1 [
              0 => "/media/algebra_09/merzljak-dm/covers/cover1.webp?ts=1756926176"
            ]
            "field_cover_alts" => array:1 [
              0 => ""
            ]
            "field_covers" => array:1 [
              0 => array:4 [
                "path" => "/media/algebra_09/merzljak-dm/covers/cover1.webp?ts=1756926176"
                "alt" => ""
                "width" => "1582"
                "height" => "2465"
              ]
            ]
            "field_popular_book" => "0"
            "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1034
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_new_book" => Illuminate\Database\Eloquent\Collection {#1035
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_old_book" => Illuminate\Database\Eloquent\Collection {#1036
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy"
            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1037
              #items: array:1 [
                0 => App\Models\Term {#1038
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "breadcrumbs" => array:3 [
              "class" => 380
              "subject" => 542
              "class_subject" => 386
            ]
          ]
          #original: array:50 [
            "id" => 826
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_tree_default_status" => "tasks"
            "field_pages_status" => null
            "field_subject" => Illuminate\Database\Eloquent\Collection {#1009}
            "field_class" => Illuminate\Database\Eloquent\Collection {#1010}
            "field_publisher" => Illuminate\Database\Eloquent\Collection {#1012}
            "field_author" => Illuminate\Database\Eloquent\Collection {#1014}
            "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1019}
            "field_book_type" => Illuminate\Database\Eloquent\Collection {#1020}
            "field_country" => Illuminate\Database\Eloquent\Collection {#1022}
            "field_city" => Illuminate\Database\Eloquent\Collection {#1024}
            "field_series" => Illuminate\Database\Eloquent\Collection {#1026}
            "field_umk" => Illuminate\Database\Eloquent\Collection {#1028}
            "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1029}
            "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1030}
            "field_publication_number" => "5"
            "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1031}
            "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1033}
            "field_under_the_edition_degree" => null
            "field_cover_description" => null
            "field_publication_year" => "2015"
            "field_publication_year_until" => null
            "field_part" => ""
            "field_part_writing" => ""
            "field_second_foreign_language" => null
            "field_for_whom" => "Пособие для учащихся общеобразовательных организаций"
            "field_allowed" => null
            "field_reserve_field" => null
            "field_link_to_source" => null
            "field_tasks_count" => "816"
            "field_priority" => null
            "field_default_folder" => "/algebra_09/merzljak-dm/"
            "field_isbn" => "978-5-09-079540-1"
            "field_cover" => array:1 [
              0 => "/media/algebra_09/merzljak-dm/covers/cover1.webp?ts=1756926176"
            ]
            "field_cover_alts" => array:1 [
              0 => ""
            ]
            "field_covers" => array:1 [
              0 => array:4 [
                "path" => "/media/algebra_09/merzljak-dm/covers/cover1.webp?ts=1756926176"
                "alt" => ""
                "width" => "1582"
                "height" => "2465"
              ]
            ]
            "field_popular_book" => "0"
            "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1034}
            "field_new_book" => Illuminate\Database\Eloquent\Collection {#1035}
            "field_old_book" => Illuminate\Database\Eloquent\Collection {#1036}
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy"
            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1037}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "breadcrumbs" => array:3 [
              "class" => 380
              "subject" => 542
              "class_subject" => 386
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
    "field_metatags_title" => null
    "field_metatags_description" => null
    "field_h1" => null
    "field_description_top" => null
    "field_description_bottom" => null
    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1039
      #items: []
      #escapeWhenCastingToString: false
    }
    "content" => Illuminate\Database\Eloquent\Collection {#1050
      #items: array:1 [
        0 => App\Models\Element {#1049
          #connection: "mysql"
          #table: "elements"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:6 [
            "id" => 1561594
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1060
              #items: array:1 [
                0 => App\Models\Edition {#1059
                  #connection: "mysql"
                  #table: "editions"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:21 [ …21]
                  #original: array:21 [ …21]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "book_page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
            "img" => array:1 [
              0 => array:5 [
                "name" => "21-1.jpg"
                "alt" => null
                "width" => "1552"
                "height" => 2478
                "path" => "/media/algebra_09/merzljak-dm/0-1/21-1.webp?ts=1757066294"
              ]
            ]
          ]
          #original: array:6 [
            "id" => 1561594
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1060}
            "book_page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
            "img" => array:1 [
              0 => array:5 [
                "name" => "21-1.jpg"
                "alt" => null
                "width" => "1552"
                "height" => 2478
                "path" => "/media/algebra_09/merzljak-dm/0-1/21-1.webp?ts=1757066294"
              ]
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
    "next" => Illuminate\Database\Eloquent\Collection {#4659
      #items: array:1 [
        0 => App\Models\BookPage {#4660
          #connection: "mysql"
          #table: "book_pages"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:21 [
            "id" => 1358227
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "22"
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/page-22"
            "field_display_title" => "22"
            "field_folder" => "1"
            "field_image_name" => "22"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#4676
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#4675
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#4674
              #items: []
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#4782
              #items: array:1 [
                0 => App\Models\Element {#4661
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1358228"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#4859
              #items: array:7 [
                0 => App\Models\Task {#4873
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                1 => App\Models\Task {#4880
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                2 => App\Models\Task {#4887
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                3 => App\Models\Task {#4967
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                4 => App\Models\Task {#4960
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                5 => App\Models\Task {#4947
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                6 => App\Models\Task {#4969
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:21 [
            "id" => 1358227
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "22"
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/page-22"
            "field_display_title" => "22"
            "field_folder" => "1"
            "field_image_name" => "22"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#4676}
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#4675}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#4674}
            "content" => Illuminate\Database\Eloquent\Collection {#4782}
            "next" => array:2 [
              "refs" => "1358228"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#4859}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
    "previous" => Illuminate\Database\Eloquent\Collection {#4654
      #items: array:1 [
        0 => App\Models\BookPage {#4653
          #connection: "mysql"
          #table: "book_pages"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:21 [
            "id" => 1358225
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "20"
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/page-20"
            "field_display_title" => "20"
            "field_folder" => "1"
            "field_image_name" => "20"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#4655
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#4656
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#4657
              #items: []
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#4667
              #items: array:1 [
                0 => App\Models\Element {#4666
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "1358224"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#4658
              #items: array:9 [
                0 => App\Models\Task {#4679
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                1 => App\Models\Task {#4686
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                   …11
                }
                2 => App\Models\Task {#4698 …30}
                3 => App\Models\Task {#4710 …30}
                4 => App\Models\Task {#4722 …30}
                5 => App\Models\Task {#4734 …30}
                6 => App\Models\Task {#4746 …30}
                7 => App\Models\Task {#4758 …30}
                8 => App\Models\Task {#4770 …30}
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:21 [
            "id" => 1358225
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "20"
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/page-20"
            "field_display_title" => "20"
            "field_folder" => "1"
            "field_image_name" => "20"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#4655}
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#4656}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#4657}
            "content" => Illuminate\Database\Eloquent\Collection {#4667}
            "next" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "1358224"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#4658}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
    "tasks" => Illuminate\Database\Eloquent\Collection {#1040
      #items: array:11 [
        0 => App\Models\Task {#1071
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1357489
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-101"
            "field_display_title" => "101"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1076
              #items: array:1 [
                0 => App\Models\Term {#1073 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1075
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1085
              #items: array:1 [
                0 => App\Models\Branch {#1084 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1119
              #items: array:3 [
                0 => App\Models\Branch {#1129 …30}
                1 => App\Models\Branch {#1133 …30}
                2 => App\Models\Branch {#1137 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1077
              #items: array:2 [
                0 => App\Models\Element {#1111 …30}
                1 => App\Models\Element {#1110 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1357490"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357488"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1114
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1357489
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-101"
            "field_display_title" => "101"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1076}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1075}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1085}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1119}
            "content" => Illuminate\Database\Eloquent\Collection {#1077}
            "next" => array:2 [
              "refs" => "1357490"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357488"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1114}
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        1 => App\Models\Task {#1117
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1357490
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-102"
            "field_display_title" => "102"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1126
              #items: array:1 [
                0 => App\Models\Term {#1073 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1112
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1115
              #items: array:1 [
                0 => App\Models\Branch {#1129 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1078
              #items: array:3 [
                0 => App\Models\Branch {#1129 …30}
                1 => App\Models\Branch {#1133 …30}
                2 => App\Models\Branch {#1137 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1081
              #items: array:2 [
                0 => App\Models\Element {#1094 …30}
                1 => App\Models\Element {#1093 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1357491"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357489"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1103
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1357490
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-102"
            "field_display_title" => "102"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1126}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1112}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1115}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1078}
            "content" => Illuminate\Database\Eloquent\Collection {#1081}
            "next" => array:2 [
              "refs" => "1357491"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357489"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1103}
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        2 => App\Models\Task {#1107
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1357491
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-103"
            "field_display_title" => "103"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1116
              #items: array:1 [
                0 => App\Models\Term {#1073 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1092
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1102
              #items: array:1 [
                0 => App\Models\Branch {#1129 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1106
              #items: array:3 [
                0 => App\Models\Branch {#1129 …30}
                1 => App\Models\Branch {#1133 …30}
                2 => App\Models\Branch {#1137 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1108
              #items: array:2 [
                0 => App\Models\Element {#1121 …30}
                1 => App\Models\Element {#1122 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1357492"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357490"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1125
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1357491
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-103"
            "field_display_title" => "103"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1116}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1092}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1102}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1106}
            "content" => Illuminate\Database\Eloquent\Collection {#1108}
            "next" => array:2 [
              "refs" => "1357492"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357490"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1125}
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        3 => App\Models\Task {#1089
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1357492
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-104"
            "field_display_title" => "104"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1104
              #items: array:1 [
                0 => App\Models\Term {#1073 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1123
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1120
              #items: array:1 [
                0 => App\Models\Branch {#1129 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1082
              #items: array:3 [
                0 => App\Models\Branch {#1129 …30}
                1 => App\Models\Branch {#1133 …30}
                2 => App\Models\Branch {#1137 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1074
              #items: array:2 [
                0 => App\Models\Element {#1155 …30}
                1 => App\Models\Element {#1157 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1357493"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357491"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1152
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1357492
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-104"
            "field_display_title" => "104"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1104}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1123}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1120}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1082}
            "content" => Illuminate\Database\Eloquent\Collection {#1074}
            "next" => array:2 [
              "refs" => "1357493"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357491"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1152}
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        4 => App\Models\Task {#1140
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1357493
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-105"
            "field_display_title" => "105"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1118
              #items: array:1 [
                0 => App\Models\Term {#1073 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1154
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1145
              #items: array:1 [
                0 => App\Models\Branch {#1129 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1144
              #items: array:3 [
                0 => App\Models\Branch {#1129 …30}
                1 => App\Models\Branch {#1133 …30}
                2 => App\Models\Branch {#1137 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1142
              #items: array:2 [
                0 => App\Models\Element {#1167 …30}
                1 => App\Models\Element {#1169 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1357494"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357492"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1164
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1357493
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-105"
            "field_display_title" => "105"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1118}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1154}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1145}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1144}
            "content" => Illuminate\Database\Eloquent\Collection {#1142}
            "next" => array:2 [
              "refs" => "1357494"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357492"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1164}
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        5 => App\Models\Task {#1159
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1357494
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-106"
            "field_display_title" => "106"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1143
              #items: array:1 [
                0 => App\Models\Term {#1073 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1166
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1162
              #items: array:1 [
                0 => App\Models\Branch {#1129 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1160
              #items: array:3 [
                0 => App\Models\Branch {#1129 …30}
                1 => App\Models\Branch {#1133 …30}
                2 => App\Models\Branch {#1137 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1161
              #items: array:2 [
                0 => App\Models\Element {#1179 …30}
                1 => App\Models\Element {#1181 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1357495"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357493"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1176
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1357494
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-106"
            "field_display_title" => "106"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1143}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1166}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1162}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1160}
            "content" => Illuminate\Database\Eloquent\Collection {#1161}
            "next" => array:2 [
              "refs" => "1357495"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357493"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1176}
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        6 => App\Models\Task {#1171
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1357495
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-107"
            "field_display_title" => "107"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1163
              #items: array:1 [
                0 => App\Models\Term {#1073 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1178
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1174
              #items: array:1 [
                0 => App\Models\Branch {#1129 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1172
              #items: array:3 [
                0 => App\Models\Branch {#1129 …30}
                1 => App\Models\Branch {#1133 …30}
                2 => App\Models\Branch {#1137 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1173
              #items: array:2 [
                0 => App\Models\Element {#1191 …30}
                1 => App\Models\Element {#1193 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1357496"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357494"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1188
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1357495
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-107"
            "field_display_title" => "107"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1163}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1178}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1174}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1172}
            "content" => Illuminate\Database\Eloquent\Collection {#1173}
            "next" => array:2 [
              "refs" => "1357496"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357494"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1188}
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        7 => App\Models\Task {#1183
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1357496
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-108"
            "field_display_title" => "108"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1175
              #items: array:1 [
                0 => App\Models\Term {#1073 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1190
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1186
              #items: array:1 [
                0 => App\Models\Branch {#1129 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1184
              #items: array:3 [
                0 => App\Models\Branch {#1129 …30}
                1 => App\Models\Branch {#1133 …30}
                2 => App\Models\Branch {#1137 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1185
              #items: array:2 [
                0 => App\Models\Element {#1203 …30}
                1 => App\Models\Element {#1205 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1357497"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357495"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1200
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1357496
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-108"
            "field_display_title" => "108"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1175}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1190}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1186}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1184}
            "content" => Illuminate\Database\Eloquent\Collection {#1185}
            "next" => array:2 [
              "refs" => "1357497"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357495"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1200}
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        8 => App\Models\Task {#1195
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1357497
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-109"
            "field_display_title" => "109"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1187
              #items: array:1 [
                0 => App\Models\Term {#1073 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1202
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1198
              #items: array:1 [
                0 => App\Models\Branch {#1129 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1196
              #items: array:3 [
                0 => App\Models\Branch {#1129 …30}
                1 => App\Models\Branch {#1133 …30}
                2 => App\Models\Branch {#1137 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1197
              #items: array:2 [
                0 => App\Models\Element {#1215 …30}
                1 => App\Models\Element {#1217 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1357498"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357496"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1212
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1357497
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-109"
            "field_display_title" => "109"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1187}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1202}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1198}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1196}
            "content" => Illuminate\Database\Eloquent\Collection {#1197}
            "next" => array:2 [
              "refs" => "1357498"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357496"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1212}
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        9 => App\Models\Task {#1207
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1357498
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-110"
            "field_display_title" => "110"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1199
              #items: array:1 [
                0 => App\Models\Term {#1073 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1214
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1210
              #items: array:1 [
                0 => App\Models\Branch {#1129 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1208
              #items: array:3 [
                0 => App\Models\Branch {#1129 …30}
                1 => App\Models\Branch {#1133 …30}
                2 => App\Models\Branch {#1137 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1209
              #items: array:2 [
                0 => App\Models\Element {#1227 …30}
                1 => App\Models\Element {#1229 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1357499"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357497"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1224
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1357498
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-110"
            "field_display_title" => "110"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1199}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1214}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1210}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1208}
            "content" => Illuminate\Database\Eloquent\Collection {#1209}
            "next" => array:2 [
              "refs" => "1357499"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357497"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1224}
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        10 => App\Models\Task {#1219
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1357499
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => "22"
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-111"
            "field_display_title" => "111"
            "field_outside_task" => "0"
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1211
              #items: array:1 [
                0 => App\Models\Term {#1073 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1226
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1222
              #items: array:1 [
                0 => App\Models\Branch {#1129 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1220
              #items: array:3 [
                0 => App\Models\Branch {#1129 …30}
                1 => App\Models\Branch {#1133 …30}
                2 => App\Models\Branch {#1137 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1221
              #items: array:2 [
                0 => App\Models\Element {#1239 …30}
                1 => App\Models\Element {#1241 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1357500"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357498"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1236
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1357499
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => "22"
            "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/upr1-111"
            "field_display_title" => "111"
            "field_outside_task" => "0"
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1211}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1226}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1222}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1220}
            "content" => Illuminate\Database\Eloquent\Collection {#1221}
            "next" => array:2 [
              "refs" => "1357500"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1357498"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1236}
            "page" => array:2 [
              "refs" => "1358226"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
  ]
  #original: array:21 [
    "id" => 1358226
    "created_at" => "2026-04-10 13:58:26"
    "updated_at" => null
    "field_page_start" => "21"
    "field_url" => "/9-klass/algebra/merzljak-didakticheskie-materialy/page-21"
    "field_display_title" => "21"
    "field_folder" => "1"
    "field_image_name" => "21"
    "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1008}
    "field_weight" => "0"
    "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1041}
    "field_metatags_title" => null
    "field_metatags_description" => null
    "field_h1" => null
    "field_description_top" => null
    "field_description_bottom" => null
    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1039}
    "content" => Illuminate\Database\Eloquent\Collection {#1050}
    "next" => array:2 [
      "refs" => "1358227"
      "type" => "book_page"
    ]
    "previous" => array:2 [
      "refs" => "1358225"
      "type" => "book_page"
    ]
    "tasks" => Illuminate\Database\Eloquent\Collection {#1040}
  ]
  #changes: []
  #casts: []
  #classCastCache: []
  #attributeCastCache: []
  #dateFormat: null
  #appends: []
  #dispatchesEvents: []
  #observables: []
  #relations: []
  #touches: []
  +timestamps: true
  +usesUniqueIds: false
  #hidden: []
  #visible: []
  #fillable: []
  #guarded: array:1 [
    0 => "*"
  ]
}
Алгебра, 9 класс Дидактические материалы, авторы: Мерзляк Аркадий Григорьевич, Полонский Виталий Борисович, Рабинович Ефим Михайлович, Якир Михаил Семёнович, издательство Просвещение, Москва, 2015, голубого цвета, страница 21
Ваш номер не отображается здесь?
Такое бывает: задание могло начаться на предыдущей или следующей странице.

Помогло решение? Оставьте отзыв в комментариях ниже.

Присоединяйтесь к Телеграм-группе @top_gdz

Присоединиться