已知√x(√x+2√y)=√y(6√x+5√y),求x+√xy-y/2x+√xy+3y的值

问题描述:

已知√x(√x+2√y)=√y(6√x+5√y),求x+√xy-y/2x+√xy+3y的值

√x(√x+2√y)=√y(6√x+5√y),
x+2√xy)=6√xy+5y,
x-4√xy-5y=0,
(√x-5√y)(√x+√y)=0
√x=5√y,(√x=-√y舍去)
(x+√xy-y)/(2x+√xy+3y)
=(25Y+5Y-Y)/(50Y+5Y+3Y)
=1/2