Please integrate ∫ 8x cos⁴(x²) dx

I really would love to see the steps you take, so please include those.
Thank you very much for nay help you can offer.

sin(2x²) + (1/8)(12x² + sin⁴(4x²)) + C

complete steps can find here:
http://www.wolframalpha.com/input/?i=integrate+8x+%28cos%28x%5E2%29%29%5E4+dx
then click on "Show Steps"

Come on Guys, you in calculus and you don't know about this website...