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 Subject: "noughts and crosses" Previous Topic | Next Topic
 Conferences The CTK Exchange Middle school Topic #47 Printer-friendly copy     Email this topic to a friend Reading Topic #47
Karen
guest
Oct-07-01, 05:34 AM (EST)

"noughts and crosses"

 For maths GCSE I have to work out the number of possibilities that a certain number of x's will go into differnt sized grids, I have done this and now have a formula(4n2 means 4n squared)Eg: 4n2- 6n + 2 4n2- 12n + 8 4n2 - 18n + 18 4n2 -24 + 32I now have to put these into one overall formula.Can anyone help PLEASE!!!

alexb
Charter Member
672 posts
Oct-08-01, 05:42 AM (EST)

1. "RE: noughts and crosses"
In response to message #0

 How do your expressions relate to the grid sizes?