Hi guys, At a real loss here. I have a question that requires me to expend (1+x+x2)5 by constructing a pattern similar to that of the "Pascal Triangle". I understand the Pascal Triangle and know how to use with with expansions of two terms only (i.e. just (1+x)5) Again, I have really have no clue how to get started and would really appreciate any hints that you guys can provide. (I would really like to solve this myself if possible (: ) Thanks guys!