4x(x-y)²-12(y-x)³
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)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?
(x-2y)²+(2x-4y)(x+y)+(x+y)²
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]
(3x-y)²-2x(4x-5y)-(x+2y)²
已知x²-y²=10,求[(x+y)³-2y(x+y)²-4(x+y)]÷(x+
[x(x²y²-xy)-y(x²-x³y)]÷3x²y
因式分解:[x(x²y²-xy)-y(x²-x³y)]÷3x²y