document.write( "Question 1073570: solve the equation log(×2+4)=2+log×-log20 \n" ); document.write( "

Algebra.Com's Answer #688375 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"log%28%28x%5E2%2B4%29%29=2%2Blog%28%28x%29%29-log%28%2820%29%29\"$
\n" ); document.write( " $\"log%28%28x%5E2%2B4%29%29-log%28%28x%29%29=log%28%28100%29%29-log%28%2820%29%29\"$
\n" ); document.write( " $\"log%28%28%28x%5E2%2B4%29%2Fx%29%29=log%28%28100%2F20%29%29\"$
\n" ); document.write( " $\"%28x%5E2%2B4%29%2Fx%29=5\"$
\n" ); document.write( " $\"x%5E2%2B4=5x\"$
\n" ); document.write( " $\"x%5E2-5x%2B4=0\"$
\n" ); document.write( " $\"%28x-1%29%28x-4%29=0\"$
\n" ); document.write( "Two solutions:
\n" ); document.write( " $\"x-1=0\"$
\n" ); document.write( " $\"x=1\"$
\n" ); document.write( "and
\n" ); document.write( " $\"x-4=0\"$
\n" ); document.write( " $\"x=4\"$
\n" ); document.write( " \n" ); document.write( "

\n" );