(x+y)²(x-y)+(x+y)(x-y)²
2.(x+y)²(x-y)²-(x-y)(x+y)(x²+y²)
求因式分解(x-y)²-2(x-y)³和(x+y)(x-y)-x(x-y)
(x+y)²(x-y)+(x+y)(x-y)²
因式分解(x+y)²(x-y)-(x+y)(x²+y²)
(x-y)³(y-x)(y-x)²+(x-y)^6
(x-2y)²+(2x-4y)(x+y)+(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(x-y)-y(y-x)+(x-y)²因式分解
若|x+2y-1|+y²+4y+4=0,求(2x-y)²-2(2x-y)(x+2y)+(x+2y)&
(3x-y)²-2x(4x-5y)-(x+2y)²
{(x-y)²+(x+y)(x-y)}÷2x