document.write( "Question 79875: ln(x+4)-ln(x+1)=lnx \n" ); document.write( "

Algebra.Com's Answer #57305 by Nate(3500) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"ln%28e%2Cx+%2B+4%29+-+log%28e%2Cx+%2B+1%29+=+log%28e%2Cx%29\"$
\n" ); document.write( " $\"ln%28e%2C%28x+%2B+4%29%2F%28x+%2B+1%29%29+=+log%28e%2Cx%29\"$
\n" ); document.write( " $\"%28x+%2B+4%29%2F%28x+%2B+1%29+=+x\"$
\n" ); document.write( " $\"x+%2B+4+=+x%28x+%2B+1%29\"$
\n" ); document.write( " $\"x+%2B+4+=+x%5E2+%2B+x\"$
\n" ); document.write( " $\"0+=+x%5E2+-+4\"$
\n" ); document.write( " $\"0+=+%28x+-+2%29%28x+%2B+2%29\"$
\n" ); document.write( "x = 2 and x = -2
\n" ); document.write( "You can not take the log of a negative number. Answer: x = 2 \n" ); document.write( "

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