Предмет: Алгебра, автор: marsmarsssil100

Значення змінних a і b такі, що 2a + b = -8; c = -4. Чому дорівнює значення виразу 6ac + 3bc? даю 25 баллов СРОЧНО!!!

Ответы

Автор ответа: yanata101

1

Відповідь:

6ac + 3bc=96

Завдання:

Значення змінних a і b такі, що 2a + b = -8; c = -4. Чому дорівнює значення виразу 6ac + 3bc?

Розв'язання:

Для обчислення даного виразу спочатку треба винести спільний множник 3с за дужки, а тоді підставити значення 2a + b = -8; c = -4 в отриманий вираз, отже маємо:

$6ac + 3bc = 3c(2a + b) =3 \cdot( - 4) \cdot( - 8) = 96$

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А Useful Hobby

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