Предмет: Математика, автор: dfgdfgdfgfdg

4(a-b)-8a+8b при a=30 b=-40

Ответы

Автор ответа: tim4ikney

0

Ответ:

280

Пошаговое объяснение:

4(a-b)-8a+8b=4a-4b-8a+8b=4b-4a

a=30

b=-40

-160-120=-280

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