化简分式方程:x*x-xy-y*y/x*x-3x-6y+2xy
化简分式方程:x*x-xy-y*y/x*x-3x-6y+2xy
(x-2xy)*(-xy+2y*y)-(3x*x-2xy)(x-9xy+6y*y)
初中数学分式已知x/y=2,求(x*x-xy+3y*y)/x*x+xy+6y*y的值
x/y=2,求分式x²-xy+3y²/x²+xy+6y²
若(y-x)/xy=3,求分式(2x+3xy-2y)/(x-2xy-y)的值
已知x-y/xy=3,求分式2x+3xy-2y/x-2xy-y的值.
若y-x/xy=3,求分式2x+3xy-2y/x-2xy-y
分式的化简求值已知x/y=2求x²-xy+3y²/x²+xy+6y²
化简x平方-y分之xy-2y求这个分式方程的化简过程
初二数学分式化简已知x-3y=0(xy不等于0),求【(2x+y)/(x²-2xy+y²)】*(x-
1、(-7x^y)(2x^y-3xy^3+xy) 2、((x-y)^6)/((y-x)^3)/(x-y)
化简:x-y/x+3y÷x^-y^2/x^2+6xy+9y^2-(xy/x+y)