x^2(x-y)+4(y-x)因式分解

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x^2(x-y)+4(y-x)因式分解x^2(x-y)+4(y-x)因式分解x^2(x-y)+4(y-x)因式分解=x2(x-y)-4(x-y)=(x2-4)(x-y)=(x+2)(x-2)(x-y)

x^2(x-y)+4(y-x)因式分解
x^2(x-y)+4(y-x)因式分解

x^2(x-y)+4(y-x)因式分解
=x2(x-y)-4(x-y)
=(x2-4)(x-y)
=(x+2)(x-2)(x-y)

(x+2)(x-2)(x-y)