若x、y为整数,√x(√x+√y)=3√y(√x+5√y),试求2x+(√xy)+3y除以x+(√xy)+y
若x、y为整数,√x(√x+√y)=3√y(√x+5√y),试求2x+(√xy)+3y除以x+(√xy)+y
√x(√x+2√y)=√y(6√x+5√y,求x-3√xy+2y/x+√xy-6y
1.若x-2√xy-3y=0 x>0求2x+y+√xy除以y-x-√xy
若x>0,y>0,且√x(√x+√y)=3√y(√x+5√y),求(2x+2√xy+3y)/(x-√xy+y)的值.
已知x,y为正数,且√x(√x+√y)=3√y(√x+5√y),求(2x+√xy+3y)/(x+√xy-y)
(√xy -xy分之x+√xy)除以√xy -y分之x-y(x>0,y.0)
当x>0,y>0且√x(√x+√y)=3√y(√x+5√y),求2x+(√xy)+3y/x+(√xy)-y的值
设√x(√x-√y)=√xy+3y,求2x+3√xy-y/3x-y的值.
帮个忙啦 已知x+y=-6 xy=8 求√y/x+√x/y
已知2X-3√xy-2y=0(x>0)求2x²+xy-9y²分之x²+4xy-16y
先化简再求值(6x√y/x +3/y*√xy^3)-(4x√x/y +√36xy) 已知X=3/2,y=27
已知y=√(x-8)+√(8-x)+18,求代数式 (x+y)/(√x-√y)-2xy/(x√x-y√x) 的值