carcass received 3 Kudos for post Re: If x is an integer, is 9^x + 9^{-x} = b ?.

GiverPostDate
IbitsamRe: If x is an integer, is 9^x + 9^{-x} = b ?25-Oct-2014
PasqualoRe: If x is an integer, is 9^x + 9^{-x} = b ?29-Jun-2014
BunuelRe: If x is an integer, is 9^x + 9^{-x} = b ?04-Oct-2012

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