document.write( "Question 526672: How do I solve for the variable $\"+log+%28x%2B4%29+%2B+log+%28x%29+=+9+\"$ \n" ); document.write( "

Algebra.Com's Answer #348625 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
log (x+4) + log (x) = 9
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\n" ); document.write( "log[x(x+4)] = 9
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\n" ); document.write( "x^2+4x = 10^9
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\n" ); document.write( "x^2 + 4x - 10^9 = 0
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\n" ); document.write( "It's pretty difficult to solve that for \"x\".
\n" ); document.write( "Did you post everything correctly?
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "

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