X-5根号XY-6Y=0 所以
(根号x+根号y)(根号x-6根号y)=0
那么根号x=根号y(舍去) 根号x=6根号y
(4X+根号XY+3Y)/(9X+5根号XY+6Y)
=(4×36y+6y+3y)/(9×36y+30y+6y)
=153/260
计算应该是对的,
X-5根号XY-6Y=0 所以
(根号x+根号y)(根号x-6根号y)=0
那么根号x=根号y(舍去) 根号x=6根号y
(4X+根号XY+3Y)/(9X+5根号XY+6Y)
=(4×36y+6y+3y)/(9×36y+30y+6y)
=153/260
计算应该是对的,