`E=\frac{3}{\sqrt{x}-1}-\frac{\sqrt{x}+5}{x-1}(x\ne1,x>=0)`
`=\frac{3(\sqrt{x}+1)-\sqrt{x}-5}{(\sqrt{x}-1)(\sqrt{x}+1)}`
`=\frac{3\sqrt{x}+3-\sqrt{x}-5}{(\sqrt{x}-1)(\sqrt{x}+1)}`
`=\frac{2\sqrt{x}-2}{(\sqrt{x}-1)(\sqrt{x}+1)}`
`=\frac{2(\sqrt{x}-1)}{(\sqrt{x}-1)(\sqrt{x}+1)}`
`=\frac{2}{\sqrt{x}+1]`