# Homework Help: What kind of Integration to use

1. Jun 18, 2014

### jdawg

1. The problem statement, all variables and given/known data
∫(x2)/(ex/2) dx

2. Relevant equations

3. The attempt at a solution
I'm not completely sure where to start on this one. I don't see any sort of u substitution working, would integration by parts be a good idea? Maybe let u=x2 and dv=(1/ex/2) ?

2. Jun 18, 2014

### Ray Vickson

BTW: you should always write $1/e^{ax}$ as $e^{-ax}$ whenever $a > 0$.