若x,y满足x^+2y^-2xy+1=0,求xy的值
若x,y满足x^+2y^-2xy+1=0,求xy的值
若x,y满足x的平方+2y的平方-2xy-2y+1=0,求(x+y)的xy次方的值.
若正实数x,y满足2x+y+6=xy,求xy的最小值.
正数xy满足x2-y2=2xy,求x+y分之x-y的值
若x+y-5xy=0,求(2x-3xy+2y)/(x+2xy+y)的值
若x-y=4,xy=1,求(-2xy+2x+3y)-(3xy+2y-2x)-(x+4y+xy)的值
若正数x,y满足x平方-y平方=2xy,求x-y除以x+y的值
若正数x,y满足x²-y²=2xy,求(x-y)/(x+y)的值
已知实数x,y满足(x2)+(y2)-xy+2x-y+1=0,求x,y的值
已知实数x、y满足X2+y2-xy+2x-y+1=0,试求x、y的值
已知实数xy满足x²﹢y²-xy+2x-y+1=0求xy
正整数x,y满足x2-y2=2xy,求x-y/x+y的值