Страница 66 - гдз по алгебре 7 класс учебник Мерзляк, Полонский

Алгебра, 7 класс Учебник, авторы: Мерзляк Аркадий Григорьевич, Полонский Виталий Борисович, Якир Михаил Семёнович, издательство Просвещение, Москва, 2016 - 2022

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

Тип: Учебник

Издательство: Просвещение, Вентана-граф

Год издания: 2016 - 2022

ISBN: 978-5-360-07440-3

Рекомендовано Министерством образования и науки Российской Федерации

Cтраница 66

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          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:21 [
            "id" => 1377234
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "67"
            "field_url" => "/7-klass/algebra/merzlyak-uchebnik/page-67"
            "field_display_title" => "67"
            "field_folder" => "1"
            "field_image_name" => "67"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#4695
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#4694
              #items: array:1 [
                0 => App\Models\Book {#1034}
              ]
              #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 {#4693
              #items: []
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#4682
              #items: array:1 [
                0 => App\Models\Element {#4684
                  #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" => "1377236"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "1377233"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#4690
              #items: array:6 [
                0 => App\Models\Task {#4984
                  #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 {#5005
                  #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 {#5051
                  #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 {#5077
                  #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 {#5099
                  #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 {#5121
                  #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" => 1377234
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "67"
            "field_url" => "/7-klass/algebra/merzlyak-uchebnik/page-67"
            "field_display_title" => "67"
            "field_folder" => "1"
            "field_image_name" => "67"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#4695}
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#4694}
            "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 {#4693}
            "content" => Illuminate\Database\Eloquent\Collection {#4682}
            "next" => array:2 [
              "refs" => "1377236"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "1377233"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#4690}
          ]
          #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 {#4666
      #items: array:1 [
        0 => App\Models\BookPage {#4665
          #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" => 1377232
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "65"
            "field_url" => "/7-klass/algebra/merzlyak-uchebnik/page-65"
            "field_display_title" => "65"
            "field_folder" => "1"
            "field_image_name" => "65"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#4667
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#4668
              #items: array:1 [
                0 => App\Models\Book {#1034}
              ]
              #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 {#4669
              #items: []
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#4679
              #items: array:1 [
                0 => App\Models\Element {#4678
                  #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" => "1377233"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "1377230"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#4672
              #items: array:16 [
                0 => App\Models\Task {#4698
                  #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 {#4703
                  #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 {#4708
                  #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 {#4723
                  #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 {#4745
                  #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 {#4767
                  #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 {#4789
                  #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]
                }
                7 => App\Models\Task {#4811
                  #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]
                }
                8 => App\Models\Task {#4808
                  #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]
                }
                9 => App\Models\Task {#4851
                  #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]
                }
                10 => App\Models\Task {#4854
                  #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]
                }
                11 => App\Models\Task {#4899
                  #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]
                }
                12 => App\Models\Task {#4921
                  #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]
                }
                13 => App\Models\Task {#4943
                  #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]
                }
                14 => App\Models\Task {#4965
                  #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
                }
                15 => App\Models\Task {#4987 …30}
              ]
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            }
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            "field_display_title" => "65"
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            "field_image_name" => "65"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#4667}
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            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#4668}
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            "previous" => array:2 [
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            "tasks" => Illuminate\Database\Eloquent\Collection {#4672}
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            0 => "*"
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      ]
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    "tasks" => Illuminate\Database\Eloquent\Collection {#1069
      #items: array:8 [
        0 => App\Models\Task {#1093
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            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1097
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                0 => App\Models\Branch {#1095 …30}
              ]
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            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1207
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                0 => App\Models\Branch {#1132 …30}
                1 => App\Models\Branch {#1168 …30}
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            }
            "content" => Illuminate\Database\Eloquent\Collection {#1217
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                1 => App\Models\Element {#1264 …30}
                2 => App\Models\Element {#1233 …30}
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                5 => App\Models\Element {#1248 …30}
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            "book" => Illuminate\Database\Eloquent\Collection {#1229
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            "book" => Illuminate\Database\Eloquent\Collection {#1229}
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            0 => "*"
          ]
        }
        1 => App\Models\Task {#1209
          #connection: "mysql"
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          #primaryKey: "id"
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            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1210
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                0 => App\Models\Term {#1094 …30}
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            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1208
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            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1215
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                0 => App\Models\Branch {#1132 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1214
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                0 => App\Models\Branch {#1132 …30}
                1 => App\Models\Branch {#1168 …30}
              ]
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            }
            "content" => Illuminate\Database\Eloquent\Collection {#1223
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                0 => App\Models\Element {#1289 …30}
                1 => App\Models\Element {#1299 …30}
                2 => App\Models\Element {#1291 …30}
                3 => App\Models\Element {#1293 …30}
                4 => App\Models\Element {#1297 …30}
                5 => App\Models\Element {#1295 …30}
                6 => App\Models\Element {#1301 …30}
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            }
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            "book" => Illuminate\Database\Eloquent\Collection {#1287
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            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1214}
            "content" => Illuminate\Database\Eloquent\Collection {#1223}
            "next" => array:2 [
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            "book" => Illuminate\Database\Eloquent\Collection {#1287}
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        }
        2 => App\Models\Task {#1213
          #connection: "mysql"
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          #keyType: "int"
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            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1212
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                0 => App\Models\Term {#1094 …30}
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              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
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            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1211
              #items: []
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            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1226
              #items: array:1 [
                0 => App\Models\Branch {#1132 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1227
              #items: array:2 [
                0 => App\Models\Branch {#1132 …30}
                1 => App\Models\Branch {#1168 …30}
              ]
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            }
            "content" => Illuminate\Database\Eloquent\Collection {#1280
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                0 => App\Models\Element {#1311 …30}
                1 => App\Models\Element {#1321 …30}
                2 => App\Models\Element {#1313 …30}
                3 => App\Models\Element {#1315 …30}
                4 => App\Models\Element {#1319 …30}
                5 => App\Models\Element {#1317 …30}
                6 => App\Models\Element {#1323 …30}
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            "book" => Illuminate\Database\Eloquent\Collection {#1309
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                0 => App\Models\Book {#1034}
              ]
              #escapeWhenCastingToString: false
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            "page" => array:2 [
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1212}
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            "book" => Illuminate\Database\Eloquent\Collection {#1309}
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        3 => App\Models\Task {#1228
          #connection: "mysql"
          #table: "tasks"
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          #keyType: "int"
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          #with: []
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1216
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            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1284
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                0 => App\Models\Branch {#1132 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1285
              #items: array:2 [
                0 => App\Models\Branch {#1132 …30}
                1 => App\Models\Branch {#1168 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1303
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                1 => App\Models\Element {#1343 …30}
                2 => App\Models\Element {#1335 …30}
                3 => App\Models\Element {#1337 …30}
                4 => App\Models\Element {#1341 …30}
                5 => App\Models\Element {#1339 …30}
                6 => App\Models\Element {#1345 …30}
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            "book" => Illuminate\Database\Eloquent\Collection {#1331
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                0 => App\Models\Book {#1034}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
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            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1216}
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            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1285}
            "content" => Illuminate\Database\Eloquent\Collection {#1303}
            "next" => array:2 [
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            "book" => Illuminate\Database\Eloquent\Collection {#1331}
            "page" => array:2 [
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            0 => "*"
          ]
        }
        4 => App\Models\Task {#1286
          #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" => "2026-04-10 13:58:26"
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            "field_url" => "/7-klass/algebra/merzlyak-uchebnik/345"
            "field_display_title" => "345"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1224
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                0 => App\Models\Term {#1094 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
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              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1306
              #items: array:1 [
                0 => App\Models\Branch {#1132 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1307
              #items: array:2 [
                0 => App\Models\Branch {#1132 …30}
                1 => App\Models\Branch {#1168 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1325
              #items: array:7 [
                0 => App\Models\Element {#1355 …30}
                1 => App\Models\Element {#1365 …30}
                2 => App\Models\Element {#1357 …30}
                3 => App\Models\Element {#1359 …30}
                4 => App\Models\Element {#1363 …30}
                5 => App\Models\Element {#1361 …30}
                6 => App\Models\Element {#1367 …30}
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            }
            "next" => array:2 [
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            "previous" => array:2 [
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            "book" => Illuminate\Database\Eloquent\Collection {#1353
              #items: array:1 [
                0 => App\Models\Book {#1034}
              ]
              #escapeWhenCastingToString: false
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            "field_display_title" => "345"
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1224}
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            "book" => Illuminate\Database\Eloquent\Collection {#1353}
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            0 => "*"
          ]
        }
        5 => App\Models\Task {#1308
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
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            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1281
              #items: array:1 [
                0 => App\Models\Term {#1094 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
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            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1328
              #items: array:1 [
                0 => App\Models\Branch {#1132 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1329
              #items: array:2 [
                0 => App\Models\Branch {#1132 …30}
                1 => App\Models\Branch {#1168 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1347
              #items: array:7 [
                0 => App\Models\Element {#1377 …30}
                1 => App\Models\Element {#1387 …30}
                2 => App\Models\Element {#1379 …30}
                3 => App\Models\Element {#1381 …30}
                4 => App\Models\Element {#1385 …30}
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                6 => App\Models\Element {#1389 …30}
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            "book" => Illuminate\Database\Eloquent\Collection {#1375
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              ]
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            "field_display_title" => "346"
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1281}
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            "book" => Illuminate\Database\Eloquent\Collection {#1375}
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        6 => App\Models\Task {#1330
          #connection: "mysql"
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                0 => App\Models\Branch {#1132 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1351
              #items: array:2 [
                0 => App\Models\Branch {#1132 …30}
                1 => App\Models\Branch {#1168 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1369
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                0 => App\Models\Element {#1399 …30}
                1 => App\Models\Element {#1409 …30}
                2 => App\Models\Element {#1401 …30}
                3 => App\Models\Element {#1403 …30}
                4 => App\Models\Element {#1407 …30}
                5 => App\Models\Element {#1405 …30}
                6 => App\Models\Element {#1411 …30}
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            "book" => Illuminate\Database\Eloquent\Collection {#1397
              #items: array:1 [
                0 => App\Models\Book {#1034}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
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            ]
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            "field_url" => "/7-klass/algebra/merzlyak-uchebnik/347"
            "field_display_title" => "347"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1304}
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            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1351}
            "content" => Illuminate\Database\Eloquent\Collection {#1369}
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        7 => App\Models\Task {#1352
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          #keyType: "int"
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            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1372
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                0 => App\Models\Branch {#1132 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1373
              #items: array:2 [
                0 => App\Models\Branch {#1132 …30}
                1 => App\Models\Branch {#1168 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1391
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                0 => App\Models\Element {#1421 …30}
                1 => App\Models\Element {#1431 …30}
                2 => App\Models\Element {#1423 …30}
                3 => App\Models\Element {#1425 …30}
                4 => App\Models\Element {#1429 …30}
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            "book" => Illuminate\Database\Eloquent\Collection {#1419
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                0 => App\Models\Book {#1034}
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            ]
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            "field_url" => "/7-klass/algebra/merzlyak-uchebnik/348"
            "field_display_title" => "348"
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            "field_metatags_title" => null
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            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1327}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1372}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1373}
            "content" => Illuminate\Database\Eloquent\Collection {#1391}
            "next" => array:2 [
              "refs" => "1375863"
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            ]
            "previous" => array:2 [
              "refs" => "1375861"
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            "book" => Illuminate\Database\Eloquent\Collection {#1419}
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      #escapeWhenCastingToString: false
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  ]
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    "id" => 1377233
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    "field_url" => "/7-klass/algebra/merzlyak-uchebnik/page-66"
    "field_display_title" => "66"
    "field_folder" => "1"
    "field_image_name" => "66"
    "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1036}
    "field_weight" => "0"
    "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1067}
    "field_metatags_title" => null
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    "field_h1" => null
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    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1065}
    "content" => Illuminate\Database\Eloquent\Collection {#1076}
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      "refs" => "1377234"
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    ]
    "previous" => array:2 [
      "refs" => "1377232"
      "type" => "book_page"
    ]
    "tasks" => Illuminate\Database\Eloquent\Collection {#1069}
  ]
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  #touches: []
  +timestamps: true
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  #hidden: []
  #visible: []
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  #guarded: array:1 [
    0 => "*"
  ]
}
Алгебра, 7 класс Учебник, авторы: Мерзляк Аркадий Григорьевич, Полонский Виталий Борисович, Якир Михаил Семёнович, издательство Просвещение, Москва, 2016 - 2022, страница 66
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