若x^2+y^2+2x-6y+10=0,求xy的值
若x+y-5xy=0,求(2x-3xy+2y)/(x+2xy+y)的值
x^2-2xy+y^2+6y+10=0求x,y的值.
已知x*x-4xy+4y*y=0 求[2x(x+y)-y(x+y)]/(4x*x-4xy+y*y)的值?
若x^2+y^2+2x-6y+10=0,求xy的值
已知3x*+xy-2y*=0,求(x/y)-(y/x)-(x*+y*)/(xy)的值.*是平方
若x+y=5,xy=6,求x^2y+xy^2的值
若x,y满足x^+2y^-2xy+1=0,求xy的值
已知x>0,y>0,且x+6y=5根号xy,求(2x+根号xy-y)分之(x+根号xy+2y)的值
若(y-x)/xy=3,求分式(2x+3xy-2y)/(x-2xy-y)的值
x的平方-2xy+y的平方-6y+10=0,求x,y
已知y-x-2xy=0,求3x+xy-3y/y-xy-x的值
已知y-x-2xy=0,求(3x+xy-3y)\(y-xy-x)的值