若1÷x-1÷y=3,则分式﹙2x+3xy-2y﹚÷﹙x-2xy-y﹚的值为﹙
分式的运算﹙x/x-y﹣2y/x-y﹚÷﹙x-2y/xy﹚×﹙1/x﹣1/y﹚
1.若x/y=2,求分式x²-xy+3y²/x²+xy+6y²的值
已知x=3 y=1\3,求3x²y-[2xy²-2﹙xy-3\2x²y﹚+xy]+3xy&
若(Y-X)÷(XY)=3,求分式(2X+3XY-2Y)÷(X-2XY-Y)
若1/x-1/y=3,则分式3x-xy-3y/x+2xy-y的值为
已知1÷y-1÷x=5,求(2x+4xy-2y)÷(x-3xy-y)的值
若实数x,y满足1/x-1/y=5,则分式3x-2xy-3y/x+xy-y的值等于?
若(y-x)/xy=3,求分式(2x+3xy-2y)/(x-2xy-y)的值
代数分式 一道题若x÷y=2,则分式(x²-xy+3y²)÷(x²+xy+6y²
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