3x^2(x-y)+12(y-x)化简
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3x^2(x-y)+12(y-x)化简3x^2(x-y)+12(y-x)化简3x^2(x-y)+12(y-x)化简3x^2(x-y)+12(y-x)=3x²(x-y)-12(x-y)=3(x
3x^2(x-y)+12(y-x)化简
3x^2(x-y)+12(y-x)化简
3x^2(x-y)+12(y-x)化简
3x^2(x-y)+12(y-x)
=3x²(x-y)-12(x-y)
=3(x-y)(x²-4)
=3(x-y)(x+2)(x-2)
3x^2(x-y)+12(y-x)
=3x²(x-y)-12(x-y)
=3(x-y)(x²-4)
=3(x-y)(x+2)(x-2)
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