Предмет: Алгебра, автор: пупочек73

(а-b)*(a+b)
-------------
3a+3b

Ответы

Автор ответа: miron2077

0

(а-в)(а+в)/3(а+в)=(а-в)/3
выделенное сократили

Автор ответа: пупочек73

0

спасибо

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