# SOLUTION: Given that {{{u=log(9,x)}}}, find in terms of u, {{{log(2,81)}}} *PLEASE ANSWER AS SOON AS POSSIBLE BRO!!!!!! :) =)

Algebra ->  Algebra  -> Logarithm Solvers, Trainers and Word Problems -> SOLUTION: Given that {{{u=log(9,x)}}}, find in terms of u, {{{log(2,81)}}} *PLEASE ANSWER AS SOON AS POSSIBLE BRO!!!!!! :) =)      Log On

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 Algebra: Logarithm Solvers Lessons Answers archive Quiz In Depth

 Question 467006: Given that , find in terms of u, *PLEASE ANSWER AS SOON AS POSSIBLE BRO!!!!!! :) =)Answer by Edwin McCravy(8882)   (Show Source): You can put this solution on YOUR website! ```Erase the log and swap the two outer numbers, leaving the base of the log as the base of the exponent: ---------------------- To find use the change of base formula: We have logs base 10 on the calculator so we let the new base be 10 and the old base be 2 Edwin```