Rút gọn

rút gọn 

√x/√x-1  - 6/√x-1  - 2√3/√x-1 (x>=0,xkhasc1 )

3-√x/√x-2  - 1-√x/√x-2  -  -5√x/√x -2
11√x/3-√x  -  2√x -1/3-√x  - √x-1/3-√x

2-6√x/√x-4  - 1-√x/√x-4  - 3-√x/√x-4