(﹣2x²y)³+(8x²)²×(-x)²×(-y)³ 怎么
(﹣2x²y)³+(8x²)²×(-x)²×(-y)³ 怎么
求因式分解(x-y)²-2(x-y)³和(x+y)(x-y)-x(x-y)
(x-y)的四次方(x-y)-2(x-y)²(y-x)³等于?
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)³+9(x-y)-6(x-y)²
(x-y)³(x-y)²(y-x)等于多少
1/2 x²y·( )=2x³y-x²y²
计算4(x+y)^5(x-y)^4÷[2(x+y)³*(y-x)²]
2x(x²+y²)²-8x³y²因式分解
化简x-y分之x + x³-2x²y+xy²分之y³ ÷ y²-x
[x(x²y²-xy)-y(x²-x³y)]÷3x²y