若x=(2+√3)/(2-√3) y=(2-√3)/(2+√3) 求5x²-16xy+5y²
√x(√x+2√y)=√y(6√x+5√y,求x-3√xy+2y/x+√xy-6y
已知2X-3√xy-2y=0(x>0)求2x²+xy-9y²分之x²+4xy-16y
若x>0,y>0,且√x(√x+√y)=3√y(√x+5√y),求(2x+2√xy+3y)/(x-√xy+y)的值.
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-5xy=0,求(2x-3xy+2y)/(x+2xy+y)的值
1.若x-2√xy-3y=0 x>0求2x+y+√xy除以y-x-√xy
已知x,y为正数,且√x(√x+√y)=3√y(√x+5√y),求(2x+√xy+3y)/(x+√xy-y)
当x>0,y>0且√x(√x+√y)=3√y(√x+5√y),求2x+(√xy)+3y/x+(√xy)-y的值
1/x+1/y=5,求2x-3xy+2y/x²+xy+y的值
已知x+y=3 xy=-5 求x设abc=1 求x²+3xy+2y²/x²y+2xy
已知xy/x+y=3,求代数式2x-5xy+2y/x-3xy+y
已知xy/x+y=2,求代数式3x-5xy+3y/-x+2xy-y的值