Предмет: Математика, автор: virctatana450

разложите на множители 7y^3+7y^2-y-1​

Ответы

Автор ответа: Аноним
2

7y³ + 7y² - y - 1 = 7y²(y+1) - (y+1) = (y+1)(7y²-1)

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