Why Does My Answer Differ from the Textbook in Differentiating y = x(1+x)^0.5?

[breen155]

Hey guys I am having a bit of trouble solving the following problem,
differentiate y = x ((1+x)^0.5)
I am using the product rule however I am getting a different answer to the back of my textbook I was wondering if anyone could help clear this up for me, thanks.

 

[Dick]

What are you getting and how are you getting it? What does the book say?