Bunuel received 6 Kudos for post If x is an integer, is 9^x + 9^{-x} = b ?.

GiverPostDate
dutchmen991If x is an integer, is 9^x + 9^{-x} = b ?05-May-2015
RDVLSCTIf x is an integer, is 9^x + 9^{-x} = b ?24-Apr-2015
MethylikIf x is an integer, is 9^x + 9^{-x} = b ?15-Sep-2014
mruIf x is an integer, is 9^x + 9^{-x} = b ?07-Aug-2014
DienekesIf x is an integer, is 9^x + 9^{-x} = b ?02-Aug-2014
amz14If x is an integer, is 9^x + 9^{-x} = b ?23-Jun-2014

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