Ohk, so I have maths homework needed to be done. It is algebra.
You have to expand
(a+b)(a+b)(a+b)(a+b)(a+b)
I can check back here hopefully before lunch, if my itouch hasn't died.
"Sex is like a velociraptor: Despite your movie-fueled lifelong neurotic obsession, it is unlikely to be found in your house." ~XKCD
I think that would be simplification, not expansion. I don't remember any of this shit, I'm on the synthetic division of cubic and quartic trinomials, which is a complete bitch.