若实数xy满足y≤2x+3,且y=x^2,则y/（x-12）的取值范围是

若实数x,y满足xy>0,且x^2y=2,则xy+x^2的最小值 若实数x,y满足xy>0,且x²y=2,则xy+x²的最小值是? 若实数xy满足y≤2x+3,且y=x^2,则y/（x-12）的取值范围是 已知x y都是实数 且满足x^2+y^2+xy=1/3,求xy的最大值 若实数x,y满足x^2-xy-y^2 =0,则x/y=? 若正实数x.y满足x+y=xy,则x+2y的最小值 若两个正实数x,y满足x^2+2xy-3y^2=0,求x^2+xy+y^2/x^2-xy+y^2 已知x,y均为实数,且满足xy+x+y=17,x^2y+xy^2=66,求x^4+x^3y+x^2y^2+xy^3+y^4的值 已知x、y均为实数,且满足xy+x+y=17,x^2y+xy^2=66求x^4+x^3y+x^2y^2+xy^3+y^4的值. 若正实数x,y满足2x+y+6=xy,求xy的最小值. 若正实数X,Y满足2X+Y+6=XY,求XY的最小值. 若x.y都是实数,且满足y=根号x-4 + 根号4-x + 1 ,求3（-xy+2x）-2(3x-y)的值若x.y都是实数,且满足y=根号x-4 + 根号4-x + 1 ,求3（-xy+2x）-2(3x-y)的值 若实数xy满足x≥y≥2,且2x²-xy-8x+2y+9=0,则根号xy的值 已知x、y均为实数,且满足xy+x+y=17,x^2y+y^2x=66,求x^4+x^3y+x^2*y^2+y^3x+y^4的值 已知实数xy满足x+2y 已知实数xy满足 x+y-2 实数xy满足1≤y≤x,且2x²-5x+4=y(x-1),则x+y的值为 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?