计算x²·(x-y)+(y-x)还有一个:-4x²yz-12xy²z+4xyz
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计算x²·(x-y)+(y-x)还有一个:-4x²yz-12xy²z+4xyz
计算x²·(x-y)+(y-x)
还有一个:-4x²yz-12xy²z+4xyz
计算x²·(x-y)+(y-x)还有一个:-4x²yz-12xy²z+4xyz
原式=x²(x-y)-(x-y)
=(x-y)(x²-1)
=(x-y)(x+1)(x-1)
解x²·(x-y)+(y-x)
=x²(x-y)-(x-y)
=(x-y)(x²-1)
=(x-y)(x+1)(x-1)
-4x²yz-12xy²z+4xyz
=-xyz(x+3y-1)