1. ## Please Check My Work: Integral

Thanks!!

-qbkr21

2. Sorry, right off the bat you wandered off. How did the numerator graduate from $x^{3}$ to $x^{4}$?

1) Don't do that.

2) Try $u^{2}\;=\;4\;+\;x^{2}$. It's a bit cleaner.

3. ## Re:

Typo...Sorry, I just woke up from a nap...