The question (and Wolfram's Answer) is:

integral ln(2x+1 - Wolfram|Alpha) (Sorry, I still don't know how to use laTex)

however, I, Wolfram and my textbook each have different answers. So, my first though was that it was just different forms but then I plugged in x = 5 and get different answers with each equation. Maybe the difference is due to the constant not being used?

__Here is the answer on the back of the book:__
1/2 * (2x+1) * ln(2x+1) - x + C

**My work is attached.**
Any help would be greatly appreciated as always!

Thanks in advance!