document.write( "Question 914714: Please check my work for expanding logs:\r
\n" ); document.write( "\n" ); document.write( "Here is the problem:\r
\n" ); document.write( "\n" ); document.write( "http://i.imgur.com/zPBO0cw.png\r
\n" ); document.write( "\n" ); document.write( "My work:
\n" ); document.write( "log(x^2-4)-log(x^3)-log(x+1)\r
\n" ); document.write( "\n" ); document.write( "=2log(x-4)-3log(x)-log(x+1)\r
\n" ); document.write( "\n" ); document.write( "Is that correct?
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Algebra.Com's Answer #555266 by MathLover1(20850) $\"\"$ $\"About$

You can put this solution on YOUR website!
your work:\r
\n" ); document.write( "\n" ); document.write( " $\"log%28x%5E2-4%29-log%28x%5E3%29-log%28x%2B1%29\"$ this is correct\r
\n" ); document.write( "\n" ); document.write( "= $\"2log%28%28x-4%29%29+-3log%28%28x%29%29-log%28%28x%2B1%29%29\"$ ...this part $\"2log%28%28x-4%29%29\"$ is incorrect; you have $\"%28x%5E2-4%29=x%5E2-2%5E2=%28x-2%29%28x%2B2%29\"$ , only if you have $\"log%28%28x-4%29%5E2%29\"$ you can write it as $\"2log%28%28x-4%29%29\"$ \r
\n" ); document.write( "\n" ); document.write( "so,
\n" ); document.write( " $\"log%28%28x%5E2-4%29%29%2B3log%28%28x%29%29-log%28%28x%2B1%29%29\"$
\n" ); document.write( " \n" ); document.write( "

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