## anonymous one year ago I need some help on indices please.

1. anonymous

$\frac{ 1 }{ \sqrt{x-1} } +\sqrt{x-1}$

2. campbell_st

well you can rewrite $\sqrt{x -1} = \sqrt{x -1} \times \frac{\sqrt{x -1}}{\sqrt{x -1}}$ so $\sqrt{x -1} = \frac{(\sqrt{x -1})^2}{\sqrt{x -1}}$ then you will have 2 fractions with the same denominator and be able to add them

3. anonymous

thanks man ^^