SOLUTION: I need to use the change of base formula to solve 3^2x=15
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Question 197861: I need to use the change of base formula to solve 3^2x=15
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
3^2x=15
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To solve for x:
log(3^2x) = log(15) common logs, base 10. Natural logs would work too.
2x*log(3) = log(15)
2x = log(15)/log(3)
x = log(15)/2log(3)
x = log(15)/log(9)
x = ~ 1.2325
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