若实数X,Y满足(X-2)^2+Y^2=3则若实数X,Y满足(X-2)^2+Y^2=3,则(x+2)²+（y+2)²的值为

若实数x,y满足x^2-xy-y^2 =0,则x/y=? 若实数x,y满足不等式组x>=0 ,y>=0,x+2y 若正实数x.y满足x+y=xy,则x+2y的最小值 已知实数x,y满足y=|x-1|若x+2y 若实数x,y满足x²+y²-2x+4y=0,求x-y的最大值 若实数x y满足（x+y)²+（x+y)-2=0则x+y值为 若实数x,y满足约束条件x-y-2=0,2y-3 设实数x,y满足 x>=0 x-2y>=0 x-y-2 设实数x,y满足约束条件：x>=2;y>=x;2x+y 当实数x,y,满足约束条件{x>0 y>=x 2x+y+k 已知实数X,Y满足2 已知实数xy满足x+2y 已知实数xy满足 x+y-2 已知实数x,y满足约束条件:x>=2 y>=2 x+y 实数x,y满足y=(根号2x)+(根号1-2x),求y最大值. 已知实数x,y满足不等式组：2x-y=0,x+2y 已知实数x.y满足(x+2)^2+y^2( 实数x.y满足(x-2(平方)+y(平方)=3则y/x的最大值?