化简:√12x²y+24x²y³(全部在根号内部)
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:1.(x-y)×√1/y-x+1/2④√x²-2xy+y² ④表示在根号前开四次
若x,y为实数,且y<根号x-1+根号1-x+2分之1,化简:1分之y-1根号1-2y+y².
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)
根号下x四次方+x²y² 化简
计算 [12(x+y)³(y-x)]³÷[4(x+y)²(x-y)]²
已知x =2y 化简(根号y/根号x -根号y )-(根号y/根号x +根号y)
已知x=2y,化简:根号y/根号x -根号y -根号y/根号x +根号y
已知x、y为实数,且根号x²=根号3-根号2,根号y平方=根号2,x+y≠根号3,求x-y
已知x>根号x-5+根号5-x+x且|y²-36|+根号2x-y-z=0,求根号y-x+根号z的值
已知y<根号x-1+根号1-x+二分之一,化简y-x分之根号x²-2xy+y²