# Integrating partial fractions

1. Sep 17, 2009

### Matty R

Hello

I've been stuck on this question for almost 3 hours now, and I still have no idea what to do. We haven't done a question like this in class, although we have done integration with partial fractions.

1. The problem statement, all variables and given/known data

Evaluate:

http://img43.imageshack.us/img43/4110/34519231.jpg [Broken]

2. Relevant equations

3. The attempt at a solution
http://img230.imageshack.us/img230/7321/21305382.jpg [Broken]

http://img230.imageshack.us/img230/4774/89099153.jpg [Broken]

If I make A and B equal 0, I get C = 6. Then I just end up with the same integral as I started with.

I'd really appreciate any help with this.

Thank you

Last edited by a moderator: May 4, 2017
2. Sep 17, 2009

### LCKurtz

No need for partial fractions. Try letting u = 2x - 1.

3. Sep 18, 2009

### Matty R

I was convinced it had something to do with partial fractions.

I've just done the u substitution thingy and 4/3, which is the correct answer.

Thank you very much for your help.