I did a few more of these types of problems...could someone please take a look at them...I would like to make sure that I am doing the correctly...
You really need to work on using parenthesis. For example in 7 you have [tex]2x + 1(x + 1)[tex] instead of . You have a similar error in 8 and 14. (This, in fact, caused your answers to 8 and 14 to be incorrect.)