What am I doing wrong?
Looks as though I left out some work, so I rescanned and everything should be there.
The first thing you are doing wrong is the thing you've uploaded here: if I were your GR teacher, I would have given you a big O for your handwriting!! Why have they put this beautiful LaTex package on the site so you can easily typeset your equations and make us understand what you are doing?!
First of all, I'm a high school student...and I know my hand writing sucks, and I'm not sure what you mean by LaTex package?
It is a package that can help you typeset equations directly on the forums:
Or you can easily use http://en.wikipedia.org/wiki/Microsoft_Word" [Broken]!
Btw. congratulations on learning stuff in GR this soon!
Separate names with a comma.