若实数xy满足x-y+10,y

已知实数xy满足x+2y 若正实数x.y满足x+y=xy,则x+2y的最小值 若正实数x ,y满足2x+y+6＝xy.则xy的最小值. 若正实数x,y满足2x+y+6=xy,求xy的最小值. 若实数X,Y满足方程5X²-12XY+10Y²-6X-14Y+13=0,则X=?Y=? 实数xy满足 x-y+10 则y比X的取值范围为 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 若实数x,y满足x·x+xy+y=14,y·y+xy+x=28.则x+y的值等于 已知实数xy,满足10x²-2xy+y²+6x+1=0,求x+y 若正实数满足x+4y+5=xy,则xy最大值为多少 若实数x,y满足y 实数xy满足y>=1 y