SOLUTION: What value of x will make the following equation true? logx81 = 4

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Question 617577: What value of x will make the following equation true?
logx81 = 4

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
What value of x will make the following equation true?
logx81 = 4
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x = 3
If you know that 3%5E4+=+81 it's obvious.
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If you don't, then
x%5E4+=+81
x+=+root%284%2C81%29+=+3