Hi guys. I've been viewing your website for a while now for guidance, but I haven't been able to solve this problem. Thus, I've registered to ask this question.

I've been putting off this homework until the end of spring break, and now I totally forgot how to do it. If anyone here knows how to do this problem, it'd be immensely appreciated if you could show me the steps to solve it.

http://i40.tinypic.com/j99ax4.png

Thank you!