# Substitution Integration

• October 15th 2011, 10:10 AM
trippy11
Substitution Integration
I'm trying to integrate $\int{({\log{x}})^2}{x^3}({\exp({-x}))}dx$

I probably have to use a substitution, but I can't seem to find the right one.

Thanks
• October 15th 2011, 10:29 AM
Siron
Re: Substitution Integration
Take a look here:

http://www.wolframalpha.com/input/?i=integrate+%28logx%29^2x^3exp%28-x%29dx