Предмет: Алгебра, автор: tiger007petr

срочно!!!!!
6. Спростіть вираз і знайдіть його значення:
1) (x+7) (x-3)-(x-6)(x+2), якщо х = -2,5;
2) (a+3)(a-6)+(9-5a)(a+1), якщо а=1 1/4

Ответы

Автор ответа: raremeisjee

1

Ответ: -29 ; -14 .

Объяснение: в фото ниже.

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