,若x^2-y^2=0,求分式x^2-3xy+5y^2/3x^2-2xy+4y^2的值
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
,若x^2-y^2=0,求分式x^2-3xy+5y^2/3x^2-2xy+4y^2的值
若x+y-5xy=0,求(2x-3xy+2y)/(x+2xy+y)的值
已知1/x+1/y=3,求分式3x-2xy+3y/x+xy+y的值
1/x+1/y=3.求分式3x-2xy+3y/x+xy+y的值
已知,1/x+1/y=5.,求分式3x+xy+3y/x-2xy+y的值
已知3X方-xy-4y方=0,求分式xy-3x方/2y方-5xy-3x方的值
解一道分式题已知1/x-1/y=3 求分式(4x-5xy-4y)/(3x-2xy-3y)的值.
若x+2y=0,xy不等于0,求分式x²+2xy/xy+y²的值
初中数学分式已知x/y=2,求(x*x-xy+3y*y)/x*x+xy+6y*y的值