- #1

- 25

- 1

## Homework Statement

The problem could be any variation of dx/(x

^{2}-2x)

## Homework Equations

∫dx/x

^{2}-a

^{2}= 1/2a ln ((x-a)/(x+a)) + C

## The Attempt at a Solution

I understand the answer to be 1/2 ln ((x-2)/x) + C

My question is why is it just x on the bottom in the solution? Shouldnt it be x+2 since the equation states "x+a"? Similar to the way it is x-2 on the top which makes sense since the formula states "x-a". Any help is greatly appreciated.