2 ok I am doing this cause I can not answer with out 20 words so that should be good now
Look to the right of the number with the line under it. If it is 5 or up then the number with the line goes up by one.
(3+a+2) (a+2-3)
(5+a) (a-1)
5a-5+a^2-a
Rearrange and combine like terms
a^2 +4a-5
