# Integration by Partial Fractions

1. Sep 21, 2008

### RedBarchetta

1. The problem statement, all variables and given/known data
$$$\int {\frac{{e^t dt}} {{e^{2t} + 3e^t + 2}}}$$$

I'm not quite sure how to start this one......Any hints? I tried bringing e^t down to the denominator and multiplying it out which still didn't help. I can't see a way to factor the denominator or split this into a partial fraction.

Thank you.

2. Sep 21, 2008

### Defennder

Why can't you factor the denominator? Denote x = e^t. Can you do it now?