【x+y-(x÷y)²】³
{(x-y)²+(x+y)(x-y)}÷2x
[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
计算4(x+y)^5(x-y)^4÷[2(x+y)³*(y-x)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(x-y)-y(y-x)+(x-y)²因式分解
已知x²-y²=10,求[(x+y)³-2y(x+y)²-4(x+y)]÷(x+
已知x-y=1,y≠0,求{(x+2y)²+(2x+y)(x+4y)-3(x+y)(x-y)}÷y的值.