若实数x.y满足√x-y+|y+3|=0,求y的x方的值.若实数x.y满足√x-y+|y+3|=0,求y的x方的值。

若实数x.y满足√x-y+|y+3|=0,求y的x方的值.若实数x.y满足√x-y+|y+3|=0,求y的x方的值。 若实数x,y满足约束条件x-y-2=0,2y-3 若实数x,y满足x-y+1》=0,x+y>=0,x 若实数x,y满足x-y+1>=0,x+y>=0,x 若x,y为实数且满足 x^+3y^-12y+12=0 ,求y^x的值? 若实数x,y满足不等式组x>=0 ,y>=0,x+2y 若实数x,y满足x^2-xy-y^2 =0,则x/y=? 若实数X,Y满足X^2+3Y^2-12Y+12=0,则Y的值是? 若实数x,y满足y 若实数x,y满足不等式y 若实数X,Y满足x²+y²-4x-2y+5=0求√x+y/√8y-2x 已知实数x,y满足{x=>0,y 已知实数x,y满足{x=>0,y 已知实数x,y满足x+y+2x-2√3y=0,求：㈠x+y的最大值；㈡x+y的最小值? 若实数x,y满足x的平方+2√3x+根号（x+y+1）+3=0,求代数式(1/x-y+1/x+y)÷y/（x²+y²）重点是代入部分啊 已知实数x,y,满足x-√x-1=√y+3-y,则x+y最大值是? 设实数X,Y满足2X+Y-2>=0,X-2Y+4>=0,3X-Y 若实数x,y满足x²+y²-2x+4y=0,求x-y的最大值