Предмет: Математика, автор: DifaGH

здесь нужно открыть скобы -(а-4)+(4-а)

Ответы

Автор ответа: malakasha
1
-(a-4)+(4-a)=-a+4+4-a=-2a+8

Удачи в учёбе!
NaStEnKaSiM: это не до конца сделано
malakasha: можно было бы и не отмечать как нарушение, а просто по-человечески сказать)))
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