如何计算(x-1)(x-2)(x-3)(x-4)-(x^2-5x)^2-10(x^2-5x)

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如何计算(x-1)(x-2)(x-3)(x-4)-(x^2-5x)^2-10(x^2-5x)
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如何计算(x-1)(x-2)(x-3)(x-4)-(x^2-5x)^2-10(x^2-5x)
如何计算(x-1)(x-2)(x-3)(x-4)-(x^2-5x)^2-10(x^2-5x)

如何计算(x-1)(x-2)(x-3)(x-4)-(x^2-5x)^2-10(x^2-5x)
(x-1)(x-2)(x-3)(x-4)-(x^2-5x)^2-10(x^2-5x)
=(x-1)(x-2)(x-3)(x-4)-x^4+10x^3-35x^2+50x
=x^4-10x^3+35x^2-50x+24-x^4+10x^3-35x^2+50x
=24