Номер 67, страница 24 - гдз по алгебре 9 класс учебник Солтан, Солтан

Алгебра, 9 класс Учебник, авторы: Солтан Генадий Николаевич, Солтан Алла Евгеньевна, Жумадилова Аманбала Жумадиловна, издательство Кокшетау, Алматы, 2019

Авторы: Солтан Г. Н., Солтан А. Е., Жумадилова А. Ж.

Тип: Учебник

Издательство: Кокшетау

Год издания: 2019 - 2026

ISBN: 978-601-317-424-2

Рекомендовано Министерством образования и науки Республики Казахстан

I. Уравнения, неравенства с двумя переменными и их системы. 1. Нелинейные уравнения с двумя переменными - номер 67, страница 24.

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        1 => App\Models\Branch {#1143
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                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1080
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                    "id" => 4953
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            "task" => array:2 [
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            "text" => "<p><strong>67.</strong> Разность квадратов каких двух натуральных чисел равна 133? (Пример, устно решенный феноменальным французским вычислителем Анри Монде в 1840 году в школьном возрасте).</p>"
            "img" => array:1 [
              0 => array:5 [
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                "width" => "1583"
                "height" => 290
                "path" => "/media/algebra_09/soltan-u19/0-1/67-1.webp?ts=1752834133"
              ]
            ]
          ]
          #original: array:7 [
            "id" => 1276422
            "created_at" => "2026-04-10 13:58:26"
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            "edition" => Illuminate\Database\Eloquent\Collection {#1076}
            "task" => array:2 [
              "refs" => "1107763"
              "type" => "task"
            ]
            "text" => "<p><strong>67.</strong> Разность квадратов каких двух натуральных чисел равна 133? (Пример, устно решенный феноменальным французским вычислителем Анри Монде в 1840 году в школьном возрасте).</p>"
            "img" => array:1 [
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        }
        1 => App\Models\Element {#1078
          #connection: "mysql"
          #table: "elements"
          #primaryKey: "id"
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            "id" => 1277620
            "created_at" => "2026-04-10 13:58:26"
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            "edition" => Illuminate\Database\Eloquent\Collection {#1107
              #items: array:1 [
                0 => App\Models\Edition {#1079
                  #connection: "mysql"
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                  #keyType: "int"
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                    "field_solution_author" => "Неизвестный"
                    "field_moderator" => "pasha"
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                    "title" => "Решение"
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                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1074}
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                    "field_solution_author" => "Неизвестный"
                    "field_moderator" => "pasha"
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                    "field_root_dir" => "1-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1075}
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                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1072}
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              "refs" => "1107763"
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        2 => App\Models\Element {#1102
          #connection: "mysql"
          #table: "elements"
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            "id" => 1553668
            "created_at" => "2026-04-10 13:58:26"
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            "edition" => Illuminate\Database\Eloquent\Collection {#1152
              #items: array:1 [
                0 => App\Models\Edition {#1111
                  #connection: "mysql"
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                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
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                  #attributes: array:21 [
                    "id" => 5665
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение 2 (rus)"
                    "field_order" => "3"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1108
                      #items: array:1 [
                        0 => App\Models\Term {#1105 …30}
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                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Gemini 2.5 Pro"
                    "field_moderator" => "tolik"
                    "field_edition_type" => "solution"
                    "field_root_dir" => "2-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1106
                      #items: []
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                      #items: []
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                    "field_process_formula" => "katex"
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                      #items: []
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                  #original: array:21 [
                    "id" => 5665
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение 2 (rus)"
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                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1108}
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                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Gemini 2.5 Pro"
                    "field_moderator" => "tolik"
                    "field_edition_type" => "solution"
                    "field_root_dir" => "2-"
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            "task" => array:2 [
              "refs" => "1107763"
              "type" => "task"
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            "text" => "<p>Пусть искомые натуральные числа — это $x$ и $y$, причем $x &gt; y$. Согласно условию задачи, разность их квадратов равна 133. Это можно записать в виде уравнения:$x^2 - y^2 = 133$</p><p>Используя формулу разности квадратов $a^2 - b^2 = (a - b)(a + b)$, преобразуем уравнение:$(x - y)(x + y) = 133$</p><p>Поскольку $x$ и $y$ являются натуральными числами, то $(x - y)$ и $(x + y)$ также являются натуральными числами. При этом $x + y &gt; x - y$. Это означает, что нам нужно найти все пары натуральных делителей числа 133.</p><p>Разложим число 133 на простые множители:$133 = 7 \cdot 19$</p><p>Таким образом, существуют две пары делителей числа 133: (1, 133) и (7, 19). Рассмотрим каждый случай отдельно.</p><p><strong>Случай 1: Делители 1 и 133</strong></p><p>Составим систему уравнений, где меньший множитель $(x-y)$ равен 1, а больший $(x+y)$ равен 133:$\begin{cases}x - y = 1 \\x + y = 133\end{cases}$</p><p>Сложим два уравнения системы:$(x - y) + (x + y) = 1 + 133$$2x = 134$$x = 67$</p><p>Теперь найдем $y$, подставив значение $x$ во второе уравнение:$67 + y = 133$$y = 133 - 67$$y = 66$</p><p>Мы нашли первую пару натуральных чисел (67 и 66), которая удовлетворяет условию. Проверка: $67^2 - 66^2 = (67 - 66)(67 + 66) = 1 \cdot 133 = 133$.Ответ: 67 и 66.</p><p><strong>Случай 2: Делители 7 и 19</strong></p><p>Составим систему уравнений для второй пары делителей:$\begin{cases}x - y = 7 \\x + y = 19\end{cases}$</p><p>Сложим уравнения системы:$(x - y) + (x + y) = 7 + 19$$2x = 26$$x = 13$</p><p>Найдем $y$, подставив значение $x$ во второе уравнение:$13 + y = 19$$y = 19 - 13$$y = 6$</p><p>Мы нашли вторую пару натуральных чисел (13 и 6), которая также удовлетворяет условию. Проверка: $13^2 - 6^2 = 169 - 36 = 133$.Ответ: 13 и 6.</p>"
          ]
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            "task" => array:2 [
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            "text" => "<p>Пусть искомые натуральные числа — это $x$ и $y$, причем $x &gt; y$. Согласно условию задачи, разность их квадратов равна 133. Это можно записать в виде уравнения:$x^2 - y^2 = 133$</p><p>Используя формулу разности квадратов $a^2 - b^2 = (a - b)(a + b)$, преобразуем уравнение:$(x - y)(x + y) = 133$</p><p>Поскольку $x$ и $y$ являются натуральными числами, то $(x - y)$ и $(x + y)$ также являются натуральными числами. При этом $x + y &gt; x - y$. Это означает, что нам нужно найти все пары натуральных делителей числа 133.</p><p>Разложим число 133 на простые множители:$133 = 7 \cdot 19$</p><p>Таким образом, существуют две пары делителей числа 133: (1, 133) и (7, 19). Рассмотрим каждый случай отдельно.</p><p><strong>Случай 1: Делители 1 и 133</strong></p><p>Составим систему уравнений, где меньший множитель $(x-y)$ равен 1, а больший $(x+y)$ равен 133:$\begin{cases}x - y = 1 \\x + y = 133\end{cases}$</p><p>Сложим два уравнения системы:$(x - y) + (x + y) = 1 + 133$$2x = 134$$x = 67$</p><p>Теперь найдем $y$, подставив значение $x$ во второе уравнение:$67 + y = 133$$y = 133 - 67$$y = 66$</p><p>Мы нашли первую пару натуральных чисел (67 и 66), которая удовлетворяет условию. Проверка: $67^2 - 66^2 = (67 - 66)(67 + 66) = 1 \cdot 133 = 133$.Ответ: 67 и 66.</p><p><strong>Случай 2: Делители 7 и 19</strong></p><p>Составим систему уравнений для второй пары делителей:$\begin{cases}x - y = 7 \\x + y = 19\end{cases}$</p><p>Сложим уравнения системы:$(x - y) + (x + y) = 7 + 19$$2x = 26$$x = 13$</p><p>Найдем $y$, подставив значение $x$ во второе уравнение:$13 + y = 19$$y = 19 - 13$$y = 6$</p><p>Мы нашли вторую пару натуральных чисел (13 и 6), которая также удовлетворяет условию. Проверка: $13^2 - 6^2 = 169 - 36 = 133$.Ответ: 13 и 6.</p>"
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№67 (с. 24)
Условие. №67 (с. 24)
скриншот условия
Алгебра, 9 класс Учебник, авторы: Солтан Генадий Николаевич, Солтан Алла Евгеньевна, Жумадилова Аманбала Жумадиловна, издательство Кокшетау, Алматы, 2019, страница 24, номер 67, Условие

67. Разность квадратов каких двух натуральных чисел равна 133? (Пример, устно решенный феноменальным французским вычислителем Анри Монде в 1840 году в школьном возрасте).

Решение. №67 (с. 24)
Алгебра, 9 класс Учебник, авторы: Солтан Генадий Николаевич, Солтан Алла Евгеньевна, Жумадилова Аманбала Жумадиловна, издательство Кокшетау, Алматы, 2019, страница 24, номер 67, Решение
Решение 2 (rus). №67 (с. 24)

Пусть искомые натуральные числа — это $x$ и $y$, причем $x > y$. Согласно условию задачи, разность их квадратов равна 133. Это можно записать в виде уравнения:$x^2 - y^2 = 133$

Используя формулу разности квадратов $a^2 - b^2 = (a - b)(a + b)$, преобразуем уравнение:$(x - y)(x + y) = 133$

Поскольку $x$ и $y$ являются натуральными числами, то $(x - y)$ и $(x + y)$ также являются натуральными числами. При этом $x + y > x - y$. Это означает, что нам нужно найти все пары натуральных делителей числа 133.

Разложим число 133 на простые множители:$133 = 7 \cdot 19$

Таким образом, существуют две пары делителей числа 133: (1, 133) и (7, 19). Рассмотрим каждый случай отдельно.

Случай 1: Делители 1 и 133

Составим систему уравнений, где меньший множитель $(x-y)$ равен 1, а больший $(x+y)$ равен 133:$\begin{cases}x - y = 1 \\x + y = 133\end{cases}$

Сложим два уравнения системы:$(x - y) + (x + y) = 1 + 133$$2x = 134$$x = 67$

Теперь найдем $y$, подставив значение $x$ во второе уравнение:$67 + y = 133$$y = 133 - 67$$y = 66$

Мы нашли первую пару натуральных чисел (67 и 66), которая удовлетворяет условию. Проверка: $67^2 - 66^2 = (67 - 66)(67 + 66) = 1 \cdot 133 = 133$.Ответ: 67 и 66.

Случай 2: Делители 7 и 19

Составим систему уравнений для второй пары делителей:$\begin{cases}x - y = 7 \\x + y = 19\end{cases}$

Сложим уравнения системы:$(x - y) + (x + y) = 7 + 19$$2x = 26$$x = 13$

Найдем $y$, подставив значение $x$ во второе уравнение:$13 + y = 19$$y = 19 - 13$$y = 6$

Мы нашли вторую пару натуральных чисел (13 и 6), которая также удовлетворяет условию. Проверка: $13^2 - 6^2 = 169 - 36 = 133$.Ответ: 13 и 6.

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