Apr 29, 2010 #1 M marocbabe New member Joined Apr 29, 2010 Messages 1 Reaction score 0 Points 1 I need to find the sum and i don't know the answer please help
Apr 29, 2010 #2 C cheddarepopcorn New member Joined Apr 29, 2010 Messages 1 Reaction score 0 Points 1 n^3+4n^2-8n-9