Hi all,

To make things easier, I took a picture of my work for these two problems. For the first one, I want to know how to simplify them to $\displaystyle \sqrt 8$ which if I'm not mistaken is the answer. For the second problem, I would also like to know how to simplify my answer, and perhaps a verification that my un-simplified answer is at least correct up to that point.

Thanks for any help!