若3x^2+3xy=0且xy不等于0,则x:y=

若3x^2+3xy=0且xy不等于0,则x:y= 已知,xy不等于0,且3x方-2xy-8y方=0,则x分之y等于 已知x-y=3xy,且xy不等于0,则-3x+6xy+3y/(7x-5y)-9xy-(3x-y) 已知xy不等于0,且2x^2+5xy-3y^2=0,则x^2-y^2/xy的值是? 已知2x2+5xy-3y2=0且xy不等于0,求x:y的值已知2x2+5xy-3y2=0且xy不等于0,求xy的值 已知XY不等于0,且3X^2-2XY-8Y^2=0,求x/y的值急啊! 已知 xy不等于0且 3x^2 - 2xy - 8y^2=0求x/y的值! xy不等于0,且3x平方-2xy-8y平方=0,求x/y得值 已知xy不等于0,且3x² -2xy-8y²=0,求x/y的值 已知x+y=2xy,且xy不等于0,则求-2x+6xy-2y/(7x+5y)-9xy-(3x+y)=___ 已知2x^2-3xy+y^2=0（xy不等于0）,则xy+yx的值是? 已知x-3y=0,且xy不等于0,求分式x*2-xy+y*2/x*2+xy+y*2的值 已知x-3y=0,且xy不等于0,求分式x^2+xy+y^2分之x^2-xy+y^2的值 已知xy不等于0,且3x2-2xy-8y2=0,求x/y的值? 若x+3y=0,xy不等于0,则分式x^2-3xy/xy+y^2的值是kuai 若x+3y=0,xy不等于0,则分式(xy+y^2)分之x^2-3xy的值 x-2y=0,且XY不等于0,则分式（Ⅹ平方-2xy）除（2x平方-3y平方） 若x^2-3xy-20y^2=0,且y不等于0,求x/y的值