初中分式计算:(xy-x²)·xy/x-y
初中分式计算:(xy-x²)·xy/x-y
计算,(x^2-xy)/(xy^2)·y/(y-x) 分式的 乘法,
分式计算:(x²+2xy+y²)/(x²y+xy)*y/(x+y)
分式(x²-y²\xy)-(xy-y²\xy-x²)可化简为
计算:(xy-x²)×x-y/xy
(xy-x²)²÷(x-y)²/xy·x-y/x² 计算
计算:(xy-x²)乘 x-y分之xy
计算;(xy-x²)÷x²-2xy+y²/xy · x-y/x²
初中数学分式已知x/y=2,求(x*x-xy+3y*y)/x*x+xy+6y*y的值
计算:3xy[2xy-x(y-2)+x]
x+2y=0(x≠0),求分式x²-xy分之2xy+y²
计算:-2x²y(-2xy²)²+(2xy)³·(xy²)