<PRE><B>Question 237827</B>
Lnx+Ln(x+12)=1.
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ln(x(x+12)) = 1
x(x+12) = e^1
x^2 + 12x - e = 0
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x = [-12 +- sqrt(144 - 4*1*-e)]/2
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x = [-12 +- sqrt(154.87)]/2
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x = [-12 +- 12.44)]/2
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Only the positive solution satisfies the original equation:
x = [-12 + 12.44]/2
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x = 0.44/2 = 0.22
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Cheers,
Stan H.</PRE>