化简 x+根号xy+y分之x根号x-y根号y
化简 x+根号xy+y分之x根号x-y根号y
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)
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
x根号x+x根号y/xy-y^2)-(x+根号xy+y/x根号x-y根号)y
化简:(x-y)除以(根号x+根号y)-(x-2根号xy+y)除以(根号x-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 (xy-y2分之x根号x+x根号y)-(x根号x-y根号y分之x+根号xy+y)
化简:(根号x+根号y)分之(x+y) +【根号xy乘以(根号x+根号y)】 分之2xy
化简(y根号x+x根号y)/(xy-y²)-(x+根号xy+y)/(x根号x-y根号y).
化简:[(x×根号x+x×根号y)/(xy-y²)]-[(x+根号下xy+y)/(x×根号x-y×根号y)]
{化简} [x+y/(根号x+根号y)]+[2xy/x·根号y+y·根号x]
化简x十Y/根号x十根号y十2Xy/x根号y十y根号x