Предмет: Алгебра, автор: FullSnade

Как решить? Срочно! Не понимаю просто

Приложения:

ubermosh92: короче, выносишь минус -2 за скобки, и полсле этого действия у тебя д

Adler09: ну да

Ответы

Автор ответа: Adler09

Ответ:

-2а + 2в...............

Автор ответа: kyhtyuk

Ответ:

-(2а-2в) = -2а+2в=-2(а-в)

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