Предмет: Математика, автор: marinapanina

как решать такой пример (m-2)(m+3)+(m+5)(4-m)

Ответы

Автор ответа: KirillLity

Для решения этого примера нужно знать как множить скобку на скобку.
Вот решение
m²+3m-2m-6+4m-m²+20-5m=m²+m-6-m²-m+20=20-6=14

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