Страница 39 - гдз по алгебре 8 класс дидактические материалы Мерзляк, Полонский

Алгебра, 8 класс Дидактические материалы, авторы: Мерзляк Аркадий Григорьевич, Полонский Виталий Борисович, Рабинович Ефим Михайлович, Якир Михаил Семёнович, издательство Просвещение, Москва, 2014, розового цвета

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

Тип: Дидактические материалы

Издательство: Просвещение, Вентана-граф

Год издания: 2014 - 2026

Цвет обложки: розовый, фиолетовый с папками

ISBN: 978-5-09-079636-1

Cтраница 39

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          #table: "elements"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:6 [
            "id" => 1197198
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1061
              #items: array:1 [
                0 => App\Models\Edition {#1053
                  #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" => "1027974"
              "type" => "book_page"
            ]
            "img" => array:1 [
              0 => array:5 [
                "name" => "39-1.jpg"
                "alt" => null
                "width" => "1535"
                "height" => 2523
                "path" => "/media/algebra_08/merzljak-dm21/0-page1/39-1.webp"
              ]
            ]
          ]
          #original: array:6 [
            "id" => 1197198
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1061}
            "book_page" => array:2 [
              "refs" => "1027974"
              "type" => "book_page"
            ]
            "img" => array:1 [
              0 => array:5 [
                "name" => "39-1.jpg"
                "alt" => null
                "width" => "1535"
                "height" => 2523
                "path" => "/media/algebra_08/merzljak-dm21/0-page1/39-1.webp"
              ]
            ]
          ]
          #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 {#5953
      #items: array:1 [
        0 => App\Models\BookPage {#5954
          #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" => 1027975
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "40"
            "field_url" => "/8-klass/algebra/merzljak-didakticheskie-materialy/page-40"
            "field_display_title" => "40"
            "field_folder" => "page1"
            "field_image_name" => "40"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#5968
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#5967
              #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 {#5966
              #items: []
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#6080
              #items: array:1 [
                0 => App\Models\Element {#6061
                  #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" => "1027976"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "1027974"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#5964
              #items: array:5 [
                0 => App\Models\Task {#6093
                  #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 {#6100
                  #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 {#6104
                  #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 {#6120
                  #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 {#6136
                  #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" => 1027975
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "40"
            "field_url" => "/8-klass/algebra/merzljak-didakticheskie-materialy/page-40"
            "field_display_title" => "40"
            "field_folder" => "page1"
            "field_image_name" => "40"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#5968}
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#5967}
            "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 {#5966}
            "content" => Illuminate\Database\Eloquent\Collection {#6080}
            "next" => array:2 [
              "refs" => "1027976"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "1027974"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#5964}
          ]
          #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 {#5948
      #items: array:1 [
        0 => App\Models\BookPage {#5947
          #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" => 1027973
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "38"
            "field_url" => "/8-klass/algebra/merzljak-didakticheskie-materialy/page-38"
            "field_display_title" => "38"
            "field_folder" => "page1"
            "field_image_name" => "38"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#5949
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#5950
              #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 {#5951
              #items: []
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#5961
              #items: array:1 [
                0 => App\Models\Element {#5960
                  #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" => "1027974"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "1027972"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#5952
              #items: array:7 [
                0 => App\Models\Task {#5971
                  #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 {#5978
                  #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 {#5982
                  #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 {#5998
                  #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 {#6014
                  #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 {#6030
                  #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 {#6046
                  #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" => 1027973
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "38"
            "field_url" => "/8-klass/algebra/merzljak-didakticheskie-materialy/page-38"
            "field_display_title" => "38"
            "field_folder" => "page1"
            "field_image_name" => "38"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#5949}
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#5950}
            "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 {#5951}
            "content" => Illuminate\Database\Eloquent\Collection {#5961}
            "next" => array:2 [
              "refs" => "1027974"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "1027972"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#5952}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
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          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
    "tasks" => Illuminate\Database\Eloquent\Collection {#1045
      #items: array:8 [
        0 => App\Models\Task {#1069
          #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" => 203947
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "39"
            "field_page_end" => null
            "field_url" => "/8-klass/algebra/merzljak-didakticheskie-materialy/2-43"
            "field_display_title" => "43"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1073
              #items: array:1 [
                0 => App\Models\Term {#1070
                  #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: []
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                  +timestamps: true
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                  #hidden: []
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                }
              ]
              #escapeWhenCastingToString: false
            }
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            "field_h1" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1072
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              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1113
              #items: array:1 [
                0 => App\Models\Branch {#1071
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:23 [ …23]
                  #original: array:23 [ …23]
                  #changes: []
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                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
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                  #touches: []
                  +timestamps: true
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                  #hidden: []
                  #visible: []
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                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1152
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                0 => App\Models\Branch {#1160
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:23 [ …23]
                  #original: array:23 [ …23]
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                  #attributeCastCache: []
                  #dateFormat: null
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                  +timestamps: true
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                  #hidden: []
                  #visible: []
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                  #guarded: array:1 [ …1]
                }
                1 => App\Models\Branch {#1164
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:23 [ …23]
                  #original: array:23 [ …23]
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                  #dateFormat: null
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                  +timestamps: true
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                  #hidden: []
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                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1111
              #items: array:4 [
                0 => App\Models\Element {#1140
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
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                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:7 [ …7]
                  #original: array:7 [ …7]
                  #changes: []
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                  #dateFormat: null
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                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                1 => App\Models\Element {#1138
                  #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
                   …11
                }
                2 => App\Models\Element {#1131 …30}
                3 => App\Models\Element {#1125 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "203948"
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            "previous" => array:2 [
              "refs" => "203946"
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            "book" => Illuminate\Database\Eloquent\Collection {#1143
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
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              "type" => "book_page"
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            "field_url" => "/8-klass/algebra/merzljak-didakticheskie-materialy/2-43"
            "field_display_title" => "43"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1073}
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            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1072}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1113}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1152}
            "content" => Illuminate\Database\Eloquent\Collection {#1111}
            "next" => array:2 [
              "refs" => "203948"
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            ]
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            0 => "*"
          ]
        }
        1 => App\Models\Task {#1149
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
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          #attributes: array:24 [
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1157
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                0 => App\Models\Term {#1070}
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                0 => App\Models\Branch {#1160}
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            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1144
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                0 => App\Models\Branch {#1160}
                1 => App\Models\Branch {#1164}
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            "content" => Illuminate\Database\Eloquent\Collection {#1112
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                0 => App\Models\Element {#1168 …30}
                1 => App\Models\Element {#1170 …30}
                2 => App\Models\Element {#1172 …30}
                3 => App\Models\Element {#1174 …30}
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            "book" => Illuminate\Database\Eloquent\Collection {#1156
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                0 => App\Models\Book {#1006}
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            "book" => Illuminate\Database\Eloquent\Collection {#1156}
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        2 => App\Models\Task {#1148
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            "field_url" => "/8-klass/algebra/merzljak-didakticheskie-materialy/2-45"
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            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1146
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            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1159
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                0 => App\Models\Branch {#1160}
              ]
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            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1153
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                0 => App\Models\Branch {#1160}
                1 => App\Models\Branch {#1164}
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            }
            "content" => Illuminate\Database\Eloquent\Collection {#1115
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                0 => App\Models\Element {#1184 …30}
                1 => App\Models\Element {#1186 …30}
                2 => App\Models\Element {#1188 …30}
                3 => App\Models\Element {#1190 …30}
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            "book" => Illuminate\Database\Eloquent\Collection {#1182
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                0 => App\Models\Book {#1006}
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            "book" => Illuminate\Database\Eloquent\Collection {#1182}
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        }
        3 => App\Models\Task {#1150
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
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          #attributes: array:24 [
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            "field_url" => "/8-klass/algebra/merzljak-didakticheskie-materialy/2-46"
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1114
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                0 => App\Models\Term {#1070}
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            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1179
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                0 => App\Models\Branch {#1160}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1181
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                0 => App\Models\Branch {#1160}
                1 => App\Models\Branch {#1164}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1117
              #items: array:4 [
                0 => App\Models\Element {#1200 …30}
                1 => App\Models\Element {#1202 …30}
                2 => App\Models\Element {#1204 …30}
                3 => App\Models\Element {#1206 …30}
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            "book" => Illuminate\Database\Eloquent\Collection {#1198
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                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
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            "field_url" => "/8-klass/algebra/merzljak-didakticheskie-materialy/2-46"
            "field_display_title" => "46"
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1114}
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            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1180}
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            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1181}
            "content" => Illuminate\Database\Eloquent\Collection {#1117}
            "next" => array:2 [
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            "book" => Illuminate\Database\Eloquent\Collection {#1198}
            "page" => array:2 [
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              "type" => "book_page"
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            0 => "*"
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        4 => App\Models\Task {#1178
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
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          #perPage: 15
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          #attributes: array:24 [
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            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
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            "field_url" => "/8-klass/algebra/merzljak-didakticheskie-materialy/2-47"
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1177
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                0 => App\Models\Term {#1070}
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            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1195
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                0 => App\Models\Branch {#1160}
              ]
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            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1197
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                0 => App\Models\Branch {#1160}
                1 => App\Models\Branch {#1164}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1176
              #items: array:4 [
                0 => App\Models\Element {#1216 …30}
                1 => App\Models\Element {#1218 …30}
                2 => App\Models\Element {#1220 …30}
                3 => App\Models\Element {#1222 …30}
              ]
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            }
            "next" => array:2 [
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            "book" => Illuminate\Database\Eloquent\Collection {#1214
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                0 => App\Models\Book {#1006}
              ]
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            }
            "page" => array:2 [
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1177}
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            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1195}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1197}
            "content" => Illuminate\Database\Eloquent\Collection {#1176}
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            "previous" => array:2 [
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            "book" => Illuminate\Database\Eloquent\Collection {#1214}
            "page" => array:2 [
              "refs" => "1027974"
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            0 => "*"
          ]
        }
        5 => App\Models\Task {#1194
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
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            "id" => 203952
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "39"
            "field_page_end" => null
            "field_url" => "/8-klass/algebra/merzljak-didakticheskie-materialy/2-48"
            "field_display_title" => "48"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1193
              #items: array:1 [
                0 => App\Models\Term {#1070}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
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            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1212
              #items: []
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            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1211
              #items: array:1 [
                0 => App\Models\Branch {#1160}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1213
              #items: array:2 [
                0 => App\Models\Branch {#1160}
                1 => App\Models\Branch {#1164}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1192
              #items: array:4 [
                0 => App\Models\Element {#1232 …30}
                1 => App\Models\Element {#1234 …30}
                2 => App\Models\Element {#1236 …30}
                3 => App\Models\Element {#1238 …30}
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            "book" => Illuminate\Database\Eloquent\Collection {#1230
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            "field_display_title" => "48"
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1193}
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            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1213}
            "content" => Illuminate\Database\Eloquent\Collection {#1192}
            "next" => array:2 [
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            "previous" => array:2 [
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            "book" => Illuminate\Database\Eloquent\Collection {#1230}
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        6 => App\Models\Task {#1210
          #connection: "mysql"
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          #primaryKey: "id"
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            "field_url" => "/8-klass/algebra/merzljak-didakticheskie-materialy/2-49"
            "field_display_title" => "49"
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1209
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                0 => App\Models\Term {#1070}
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              #escapeWhenCastingToString: false
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            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1228
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            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1227
              #items: array:1 [
                0 => App\Models\Branch {#1160}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1229
              #items: array:2 [
                0 => App\Models\Branch {#1160}
                1 => App\Models\Branch {#1164}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1208
              #items: array:4 [
                0 => App\Models\Element {#1248 …30}
                1 => App\Models\Element {#1250 …30}
                2 => App\Models\Element {#1252 …30}
                3 => App\Models\Element {#1254 …30}
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            "book" => Illuminate\Database\Eloquent\Collection {#1246
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
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            "field_url" => "/8-klass/algebra/merzljak-didakticheskie-materialy/2-49"
            "field_display_title" => "49"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1209}
            "field_metatags_title" => null
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            "content" => Illuminate\Database\Eloquent\Collection {#1208}
            "next" => array:2 [
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            "previous" => array:2 [
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            "book" => Illuminate\Database\Eloquent\Collection {#1246}
            "page" => array:2 [
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              "type" => "book_page"
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        }
        7 => App\Models\Task {#1226
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
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          #with: []
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1225
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                0 => App\Models\Term {#1070}
              ]
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                0 => App\Models\Branch {#1160}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1245
              #items: array:2 [
                0 => App\Models\Branch {#1160}
                1 => App\Models\Branch {#1164}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1224
              #items: array:4 [
                0 => App\Models\Element {#1264 …30}
                1 => App\Models\Element {#1266 …30}
                2 => App\Models\Element {#1268 …30}
                3 => App\Models\Element {#1270 …30}
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            "book" => Illuminate\Database\Eloquent\Collection {#1262
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            }
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            "field_h1" => null
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            "breadcrumbs" => []
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            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1243}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1245}
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            "next" => array:2 [
              "refs" => "203955"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "203953"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1262}
            "page" => array:2 [
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              "type" => "book_page"
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          ]
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    "created_at" => "2026-04-08 17:28:58"
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    "field_url" => "/8-klass/algebra/merzljak-didakticheskie-materialy/page-39"
    "field_display_title" => "39"
    "field_folder" => "page1"
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    "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1008}
    "field_weight" => "0"
    "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1043}
    "field_metatags_title" => null
    "field_metatags_description" => null
    "field_h1" => null
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    "field_description_bottom" => null
    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1041}
    "content" => Illuminate\Database\Eloquent\Collection {#1052}
    "next" => array:2 [
      "refs" => "1027975"
      "type" => "book_page"
    ]
    "previous" => array:2 [
      "refs" => "1027973"
      "type" => "book_page"
    ]
    "tasks" => Illuminate\Database\Eloquent\Collection {#1045}
  ]
  #changes: []
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  #dispatchesEvents: []
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  +timestamps: true
  +usesUniqueIds: false
  #hidden: []
  #visible: []
  #fillable: []
  #guarded: array:1 [
    0 => "*"
  ]
}
Алгебра, 8 класс Дидактические материалы, авторы: Мерзляк Аркадий Григорьевич, Полонский Виталий Борисович, Рабинович Ефим Михайлович, Якир Михаил Семёнович, издательство Просвещение, Москва, 2014, розового цвета, страница 39
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