SOLUTION: Please help in solving in this problem Q) log(x+1)+log(x-1)=log 8

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Question 393009: Please help in solving in this problem
Q) log(x+1)+log(x-1)=log 8
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
log(x+1)+log(x-1)=log 8
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log(x^2-1) = log(8)
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x^2-1 = 8
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x^2-9 = 0
(x-3)(x+3) = 0
Usable answer:
x = 3
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Cheers,
Stan H.
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