-(-3x²y³)²×(-x³y²)³肿么化简
(x-y)³+9(x-y)-6(x-y)²
(x-y)³(x-y)²(y-x)等于多少
[x(x²y²-xy)-y(x²-x³y)]÷3x²y
【x(x²y²-xy)-y(x²-x³y)】÷3x²y
因式分解:[x(x²y²-xy)-y(x²-x³y)]÷3x²y
求因式分解(x-y)²-2(x-y)³和(x+y)(x-y)-x(x-y)
计算 [12(x+y)³(y-x)]³÷[4(x+y)²(x-y)]²
因式分解 -5x³y(x-y)³+20y【x²(y-x)】²
(x-y)的四次方(x-y)-2(x-y)²(y-x)³等于?
(x-y)³(y-x)(y-x)²+(x-y)^6
合并同类项:-6x²y-x+5x²y-2x+x³y+3x
四分之一(x+y)²-3(x-y)³+二分之一(x+y)²-5(x-y)³