若实数x,y满足x+y+(x-y)i=2,则xy的值等于

若实数x,y满足x+y+(x-y)i=2,则xy的值等于 若实数x,y满足x·x+xy+y=14,y·y+xy+x=28.则x+y的值等于 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? 若正实数x.y满足x+y=xy,则x+2y的最小值 实数X,Y满足X大于等于Y大于等于1和2X平方-xy-5x+y+4=o,则x+y的值 已知正实数x、y满足x+2y=xy，则2x+y的最小值等于______． 若实数xy满足（x+y+2)(x+y-1)=0,则x+y的值是 已知实数x满足x^2+2xy+y^2-(x+y)-6=0则x+y的值 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满足根号x-2 +(3-y)^2=0,则代数式xy-x的值为 若实数x,y满足:xy=2-x,则x+2y的取值范围