Автор - Mahdi06ingame

упростите выражение 3a(a-2)-2a(a-3) 5b (b-c) +c (2b-c)

Ответ

Автор - altowa1
 3a(a-2)-2a(a-3) = 3а²-6а-2а²+6а= 3а²-2а²= а²(3-2)
5b (b-c) +c (2b-c)= 5в²-5вс+2вс-с²=5в(в-с)+с(2в-с)

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