化简 [﹙x-y)-³(x+y)5/(x+y)-²(x-y)³]-²
因式分解 -5x³y(x-y)³+20y【x²(y-x)】²
求因式分解(x-y)²-2(x-y)³和(x+y)(x-y)-x(x-y)
(x-y)³(y-x)(y-x)²+(x-y)^6
(x-y)的四次方(x-y)-2(x-y)²(y-x)³等于?
2.(x+y)²(x-y)²-(x-y)(x+y)(x²+y²)
计算4(x+y)^5(x-y)^4÷[2(x+y)³*(y-x)²]
计算:(x-y)的5次方(x-y)²(x-y)³
[x(x²y²-xy)-y(x²-x³y)]÷3x²y
因式分解:[x(x²y²-xy)-y(x²-x³y)]÷3x²y
5(x-y)³-3(x-y)²+7(x-y)-5(x-y)³+(x-y)²-5(
(x-y)²(y-x)³等于多少.
(x-y)²×(y-x)³ 等于多少 解法.