SOLUTION: How do I solve for the variable {{{ log (x+4) + log (x) = 9 }}}

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Question 526672: How do I solve for the variable +log+%28x%2B4%29+%2B+log+%28x%29+=+9+
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
log (x+4) + log (x) = 9
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log[x(x+4)] = 9
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x^2+4x = 10^9
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x^2 + 4x - 10^9 = 0
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It's pretty difficult to solve that for "x".
Did you post everything correctly?
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Cheers,
Stan H.