document.write( "Question 421019: log5 4 to base 10 and evaluate\r
\n" ); document.write( "\n" ); document.write( "convert log9 37 to base 10 and evaluate\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #294087 by dnanos(83)\"\" \"About 
You can put this solution on YOUR website!
let x=\"log%285%2C4%29\"
\n" ); document.write( "Then we obtain
\n" ); document.write( "\"5%5Ex=4\"
\n" ); document.write( "\"log%2810%2C5%5Ex%29\"=\"log%2810%2C4%29\"
\n" ); document.write( "\"x%2Alog%285%29\"=\"log%284%29\"
\n" ); document.write( "\"x=log%284%29%2Flog%285%29\"
\n" ); document.write( "\"log%285%2C4%29=log%284%29%2Flog%285%29\"
\n" ); document.write( "The same way
\n" ); document.write( "\"log%289%2C37%29=log%2837%29%2Flog%289%29\"
\n" ); document.write( "Generally
\n" ); document.write( "\"log%28a%2Cb%29\"=\"logb%2Floga\"
\n" ); document.write( "
\n" );