(-x²)×(x/y)³÷(-y/x)^-6=
(x-y)³(y-x)(y-x)²+(x-y)^6
[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)
已知x²-y²=10,求[(x+y)³-2y(x+y)²-4(x+y)]÷(x+
已知x²+y²-8x+6y+25=0,求(x-y+4xy/x-y)(x+y-4xy/x+y)
2.(x+y)²(x-y)²-(x-y)(x+y)(x²+y²)
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?
计算4(x+y)^5(x-y)^4÷[2(x+y)³*(y-x)²]
【(2x+y)²-y(y+4x)-8x】÷2x,其中x=100
已知4x²+y²-4x-6y+10=0求(2/3x(√9x)+(y²√x/y³)