化简分式① 2x³(y-x)³/4y(x-y)²
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?
化简分式(x-y)/x^2+y^2
约分下列分式(x-y)/(y-x)³(x²-9)/(6-2x)(x²-1)/(x-x
已知:4x-y=0,化简分式x²+3y/2y-3x.
分式计算:(x²+2xy+y²)/(x²y+xy)*y/(x+y)
计算4(x+y)^5(x-y)^4÷[2(x+y)³*(y-x)²]
分式的加减:[(x/y-y/x)除以(x+y)+x(1/y-1/x)]除以1+x/y,其中x=5,y=2
分式约分 2x(x-y)分之(y-x)²
x-y分之2减去(x-y)的平方分之x+y 分式加减咋做啊?
因式分解 -5x³y(x-y)³+20y【x²(y-x)】²
(x-y)³(y-x)(y-x)²+(x-y)^6