SOLUTION: solve 5^(3x)-1=8 using logarithms

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Question 804821: solve 5^(3x)-1=8 using logarithms
Found 2 solutions by Alan3354, stanbon:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
solve 5^(3x)-1=8 using logarithms
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5^(3x) = 9
3x*log(5) = log(9)
x = log(9)/(3log(5))

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
solve 5^(3x)-1=8 using logarithms
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5^(3x) = 9
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(3x)log(5) = 2log(3)
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(3x/2) = log(3)/log(5)
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(3x/2) = 0.6826
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3x = 1.3652
x = 0.4551
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Cheers,
Stan H.
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