分式(x²-y²\xy)-(xy-y²\xy-x²)可化简为
分式(x²-y²\xy)-(xy-y²\xy-x²)可化简为
分式计算:(x²+2xy+y²)/(x²y+xy)*y/(x+y)
初中分式计算:(xy-x²)·xy/x-y
x-y/x²÷x²-2xy+y²/xy*(xy-x²)
计算:(xy-x²)×x-y/xy
计算:(xy-x²)乘 x-y分之xy
x+2y=0(x≠0),求分式x²-xy分之2xy+y²
x²/xy-x/y
化成最简分式(1)2xy-4/x²y²+3xy-10 (2)2x²+xy-6y²
(x+y)(x²-xy+y²)—xy(x+y)因式分解
若x+2y=0,xy不等于0,求分式x²+2xy/xy+y²的值
3x²y+xy²-[2xy²-4x²y+(x²y-2xy²)