Предмет: Алгебра, автор: blitzcrafteurplay

1. Выполните действия
1. 3а^2(5а^2-2а)
2. (2а-3b)(5a + 7b)

Ответы

Автор ответа: NNNLLL54

0

$3a^2(5a^2-2a)=15a^4-6a^3\\\\(2a-3b)(5a+7b)=10a^2+14ab-15ab-21b^2=10a^2-ab-21b^2$

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