I have questions about two problems and it be great if anybody could help me.

First one is this one

http://img123.imageshack.us/img123/8764/20459883.png

+C is already included at the end, but it isn't taking it.

Second one I don't know what to do with

http://img718.imageshack.us/img718/1307/fadf.png

If anybody could help me out that be great....