Предмет: Алгебра, автор: matviirudenko

(3а-2) (4а+2) - (12а2-4)

Ответы

Автор ответа: ariyaaa

Ответ:4:а+2-3:а-2+12:а^2-4= приводим к общему знаменателю а^2: (4а+2а^2-3а-2а^2+12-4а^2):а^2 отсюда следует: а^2 не равно 0. Значит, а не равно 0. Переписываем числитель и упрощаем: 4а+2а^2-3а-2а^2+12-4а^2=4а-3а+12-4а^2=а+12-4а^2=-4а^2+а+12 Поделив на (-1) получим: 4а^2-а-12 Ответ: 4а^2-а-12.

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