Предмет: Алгебра, автор: tatka8071999

Упростить выражение: 3х(х-5)-5х(х-3)

Ответы

Автор ответа: melomaniya

0

3х(х-5)-5х(х-3)
3х2(квадрат)-15х-5х2(квадрат)+15х
3х2-5х2=-2х2
15х и -15х сокращаются
ответ -2х в квадрате

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