Автор - aneeeeechka

8а^2-2/8-16а упростите выражение

Ответ

Автор - svetazuna

(8а² - 2) / (8 - 16а) =

= 2*(4а² - 1) / 8*(1 - 2а) =

= 2*(2а - 1)(2а + 1) / 8*(1 - 2а) =

= -2*(2а - 1)(2а + 1) / 8*(2а - 1) =

= -(2а + 1) / 4

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