已知xy=8满足x^2y-8xy^2-x+y=56,求x^2+y^2的值

已知正数x,y满足2x+8y-xy=0,x+y的最小值 已知x-xy=8,xy-y=-9,求x+y-2xy的值 已知正数xy满足x+2y=2,则x+8y/xy的最小值为? 已知实数xy满足x+2y 已知实数xy满足 x+y-2 已知xy满足约束条件y=2 2X+y 已知实数x、y满足xy>0,且8/xy+1/x+1/y=1, 已知整数x和y,满足x^+xy-2y^=7,求xy的值 已知xy/x+y=2,求代数式8x-5xy+8y/-x+3xy-y的值 已知实数xy满足x²﹢y²-xy+2x-y+1=0求xy 已知实数X,Y满足根号2X-Y-8+根号X+2y+1=0,求XY. 已知正数x y满足x+2y=2 则x+8y/xy 的最小值为 已知正数x,y满足x+8y-xy=0,则x+2y的最小值是 已知xy=8满足x^2y-8xy^2-x+y=56,求x^2+y^2的值 已知xy=8满足x^2y-xy^2-x+y=56,求x^2+y^2的值 已知XY=8,满足Xˇ2Yˇ-XYˇ2-X+Y=56,求Xˇ2+Yˇ2的值 已知xy为实数,且满足2x^2+4xy+4y^2+8x+12y+10=0,试求x+y的值如题. 已知xy=8满足x²y-xy²-x+y=56,求x²+y²x-3=y-2=z-1,求x²+y²+z²-xy-yz-zx因式分解 如图