document.write( "Question 966659: log(x^2+7x)=log18
\n" ); document.write( " I think I'm supposed to get the log on one side, so would it look like this? log18(x^2+7x)
\n" ); document.write( "Do I then write it out like this? log18 x^2 +log18 7x \n" ); document.write( "

Algebra.Com's Answer #590792 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+log%28+x%5E2+%2B+7x+%29+=+log%28+18+%29+\"$
\n" ); document.write( "What you need here is the general rule:
\n" ); document.write( "If $\"+log%28%28a%29%29+=+log%28%28b%29%29+\"$
\n" ); document.write( "Then, $\"+a=b+\"$
\n" ); document.write( " $\"+x%5E2+%2B+7x+=+18+\"$
\n" ); document.write( " $\"+x%5E2+%2B+7x+-+18+=+0+\"$
\n" ); document.write( " $\"+%28+x+%2B+9+%29%2A%28+x+-+2+%29+=+0+\"$
\n" ); document.write( " $\"+x+=+-9+\"$
\n" ); document.write( " $\"+x+=+2+\"$
\n" ); document.write( "-------------
\n" ); document.write( "check answers:
\n" ); document.write( " $\"+log%28+x%5E2+%2B+7x+%29+=+log%28+18+%29+\"$
\n" ); document.write( " $\"+log%28+%28-9%29%5E2+%2B+7%2A%28-9%29+%29+=+log%28+18+%29+\"$
\n" ); document.write( " $\"+log%28+81+-+63+%29+=+log%28+18+%29+\"$
\n" ); document.write( " $\"+log%28+18+%29+=+log%28+18+%29+\"$
\n" ); document.write( "You can check other solution, $\"+x+=+2+\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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