SOLUTION: 3^(9x-9)=5

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Question 685002: 3^(9x-9)=5
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Write the expression as a single logarithm. Express powers as factors.
In(x/x-7)+In(x+7/x)-In(x^2-49)
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ln[(x/(x-7)*(x+7)/x)/(x^2-49)]
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= ln[((x+7)/(x-7)*((x^2-49)/1]
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= ln(x+7)^2
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= 2ln(x+7)
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Cheers,
Stan H.