解方程组:(x+2) (y-2) = xy根号下(x+1)(y+4) + x + 3 = 0 (注:只有(x+1)(y+

解方程组:(x+2) (y-2) = xy根号下(x+1)(y+4) + x + 3 = 0 (注:只有(x+1)(y+ 解方程组x+y+根号下x+y=12 x+xy+y=23 解方程组：根号x+根号y=3和根号下xy=2 (x+y)/(根号下x+根号下y)+2xy/(x根号下y+y根号下x)=______. 求方程组的解,方程组xy/(2x+y)-xy/(2x-y)=3,xy/(2x-y)+xy/(2x+y)=4 解方程组:根号(x+1/y)+根号(x+y-3)=3 2x+y+1/y=8 解方程组 (根号下x+1/y)+(根号下x+y-3)=3 和 2x+y+1/y=8 已知正实数x y满足x-根号xy-2y=0求 x+3根号xy+2y/2x-2根号下xy-y 已知x、y满足根号下4x-5y+根号下x-y-1=0,则根号下xy-根号下x/y 解方程组:(x-1)(y-2)=xy和x(x+2)-4y(y-1)=(x+2y)(x-2y) 解方程组{(x-1)(y-2)=xy {x(x+2)-4y(y-1)=(x-2y)(x+2y) 解方程组：（x-1)(y-2)=xy,x(x+2)-4y(y-1)=(x+2y)(x-2y)