SOLUTION: what is the answer and way to work this out? log(base 3)81=x^2

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: what is the answer and way to work this out? log(base 3)81=x^2      Log On


   

Question 699224: what is the answer and way to work this out?
log(base 3)81=x^2
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
log(base 3)81=x^2
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base = 3
log = exponent = x^2
result = 81
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Equation:
3^(x^2) = 81
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3^(x^2) = 3^4
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x^2 = 4
x = 2 or x = -2
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Cheers,
Stan H.
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