已知|3x+2y-4|+√(2x-y-5)=0,求实数x和y的值

已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y) 已知4x=5y,那么(3x+y)/(x-2y)= 已知x,y>0 2x+y+3=xy 求5x+4y最小值 已知2y-x=-3,求[4y(2x-y)-2x(2x-y)]/(2x-y 已知x*x+4x+y*y-2y+5=0,则x*x+y*y=? 已知x^2+y^2-4x-2y+5=0,求【2/3x√9x+y^2 √[x/y^2]】的值 已知4x²+y²-4x-6y+10=0求（2/3x（√9x）+(y²√x/y³)×(x²√1/x×5x√y/x)的值 已知4x²+y²-4x-6y+10=0求（2/3x（√9x）+(y²√x/y³)-(x²√1/x-5x√y/x)的值 已知4x²+y²-4x-6y+10=0,求[(2/3)x√(9x)+y²√(x/y³)-(x²√(1/x)-5x√(y/x)的值 1.已知:x-2y=3,求[(3x+2y)(3x-2y)-(x+2y)(5x-2y)]除4x 的值 已知x-2y=2011,求[(3x+2y)(3x-2y)-(x+2y)(5x-2y)]÷4x的值. 已知|3x+2y-4|+√(2x-y-5)=0,求实数x和y的值 已知7x+5y/2y-x=3/2,且x≠0,求X/x-4y 因式分解(x-2y)(x-3y)+(x-4y)(x-5y)+（x-3y)(x-5y)+(x-2y)(x-4y) 已知x-y=1,求[(x+2y)^2+(2x+y)(x-4y)-3(x+y)(x-y)]除以y的值大神们帮帮忙 已知x-y=1,求[(x+2y)²+(2x+y)(x-4y)-3(x+y)(x-y)]÷y的值 已知4x²+y²-4x-6y+10=0,求(2/3√9x+y²√x/y³)-(x√1/x-5x√y/x)的值. 已知4x²+y²-4x-6y+10=0,求(2/3√9x +y²√x/y³)-(x²√1/x -5x√y/x)的值.