9x^2(x-1)^2-3(x^2-x)-56

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9x^2(x-1)^2-3(x^2-x)-569x^2(x-1)^2-3(x^2-x)-569x^2(x-1)^2-3(x^2-x)-56=9x^2(x-1)^2-3x(x-1)-56=[3x(x-1

9x^2(x-1)^2-3(x^2-x)-56
9x^2(x-1)^2-3(x^2-x)-56

9x^2(x-1)^2-3(x^2-x)-56
=9x^2(x-1)^2-3x(x-1)-56
=[3x(x-1)-8][3x(x-1)+7]
=(3x^2-3x-8)(3x^2-3x+7)

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