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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 + 32 I now have to put these into one overall formula. Can anyone help PLEASE!!!   Alert | IP Printer-friendly page | Edit | Reply | Reply With Quote | Top

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?   Alert | IP Printer-friendly page | Edit | Reply | Reply With Quote | Top

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