# Math Help - Integration By Parts

1. ## Integration By Parts

Can anyone help me integrate this problems, particularly when dealing with du.

$x^5\sqrt(x1+x^3)$

2. Not all too clear there. Is this it: $\int x^5 \sqrt{x + x^3} \ dx$

3. Yes, I need help solving that problem $\int x^5 \sqrt{1 + x^3} \ dx$