SOLUTION: log 81^x=1/4

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Question 386968: log 81^x=1/4
Found 2 solutions by stanbon, Alan3354:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
log 81^x=1/4
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base = 10
exponent = 1/4
result = 81^x
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Write in exponential form:
10^(1/4) = 81^x
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81^x = 1.7783
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Take the log of both sides to get:
x*log(81) = log(1.7783)
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x = log(1.7783)/log(81)
x = 0.1310
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Cheers,
Stan H.

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
log 81^x=1/4
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x*log(81) = log(0.25)
x = log(0.25)/log(81)
x =~ -0.315465