# another root integral

• February 16th 2013, 12:27 PM
infraRed
another root integral
Hi. I'm doing some review questions, and I'm not sure what to do with this integral:

$\int{x\sqrt{x-2}\,dx}$

I suppose I could try integration by parts. But the review question is from a section before we learned that, so presumably there must be a another approach.
• February 16th 2013, 12:31 PM
Plato
Re: another root integral
Quote:

Originally Posted by infraRed
Hi. I'm doing some review questions, and I'm not sure what to do with this integral:

$\int{x\sqrt{x-2}\,dx}$

I suppose I could try integration by parts. But the review question is from a section before we learned that, so presumably there must be a another approach.

Change it to $\int{(u+2)\sqrt{u}\,du}$