x(x-y)+4(y-x)因式分解

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

x(x-y)+4(y-x)因式分解
x(x-y)+4(y-x)因式分解

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