(2根号X²Y)/(3根号XY)
化简:((根号x-根号y)^3+2x根号x+y根号y)/(x根号x+y根号y)+(3根号xy-3y)/(x-y)
【(x-y)^3(x^1/2+y^1/2)^-3+3(x根号y-y根号x)】/(x根号x+y根号y)+(2xy根号xy-
x根号x+x根号y/xy-y^2)-(x+根号xy+y/x根号x-y根号)y
已知y=根号1-x+根号x-1+3,求根号x+根号y分之x+2根号xy+y+根号x-根号y分之一的值
计算:【(根号2y-x)-(根号3x/y)】根号6xy-【(1/3(根号75y²)-(根号18x²)
3根号xy分之2根号x的平方y
已知x=根号3+根号2,y=根号3-根号2,求(x²+xy+y²)/(x+y)-(x+y)
已知根号x(根号x-根号y)=根号xy+3y,求(3x-y)分之2x+3倍根号xy-y 的值
已知x+y=根号3+根号2,xy=根号6,求x²+y²的值.
化简:5根号X^3Y-2Y根号XY-6根号XY+根号X分之Y+根号Y分之X
已知x,y为正数,且根号x(根号x+根号y)=3根号y(根号x+5根号y),求:(2x+根号xy+3y)/(x+根号xy
设x>0,y>0,且根号x(根号x+根号y)=3根号y(根号x+5根号y),求代数式2x+根号xy+2y\x-根号xy-