已知xy≠0,且根号(4x^2y^2)=-2xy,则有 √(23-6√(10-4√(3+2√2)))=?
已知xy≠0,且根号(4x^2y^2)=-2xy,则有 √(23-6√(10-4√(3+2√2)))=?
已知xy≠0且根号4x^2y^2=-2xy,则有()
已知 x-3*根号(xy)-4y=0,则 [2x+3*根号(xy)-2y]/[3x-根号(xy)+y]=______
已知x>0,y>0,且x+6y=5根号xy,求(2x+根号xy-y)分之(x+根号xy+2y)的值
已知x>0,y>0,且x-根号xy-6y=0,求x+2根号xy+3y/4x-5根号xy-6y的值
已知x-y=4xy且xy≠0,求代数式-x-2xy+y分之2x+3xy-2y的值
已知x>0,y>0,x+根号xy-6y=0,求4x+5根号xy-6y分之x+2根号xy
已知X—根号3XY-4Y=0,求(2X+3根号XY-2Y)/(3X-根号XY+Y)的值
已知x>0,y>0,且x-4倍根号xy-5y=0.求代数式2x+根号xy+3y分之x+根号xy-y的值
已知2X-3√xy-2y=0(x>0)求2x²+xy-9y²分之x²+4xy-16y
(1)已知x-y=6,xy=4,求xy^-1+x^-1y的值; (2)已知x^2+y^2=3xy且xy≠0,求x^2y^
已知根号XY-根号Y-2倍根号X+2=0,且X的平方-4X+4=0,求根号XY的值 PS