Автор - Flash65

Разложите на множители 4x² - 4y + x²y -16

Ответ

Автор - MM18
4x² - 4y + x²y -16 = (4x² + x²y) - (4y + 16) = x²(4 + y) - 4(4 + y) = (x² - 4)(4 + y) = (x - 2)(x + 2)(y + 4)

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