Предмет: Алгебра, автор: belousovapolina7

1.3b²(b7- 2b²+4)
2. (a-4)(2a+7)
3.(7c-d)(3c+4d)
4. (b-3)(b²+2b-2)
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Автор ответа: larisaserova53
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Ответ:

Смотри решение на фото..

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