document.write( "Question 436792: The teacher gave us problems based on the properties of logarithms. I understand some but still need a help with a few.the problem and finally the harder one for me is
\n" );
document.write( "
Algebra.Com's Answer #302146 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Just remember that logs are exponents or powers. \n" ); document.write( "When you add them you achieve multiplication. \n" ); document.write( "When you subtract them you achieve division. \n" ); document.write( "When you multiply them you are multiplying over and over again. \n" ); document.write( "---------------------------------------------------------\r \n" ); document.write( "\n" ); document.write( "The teacher gave us problems based on the properties of logarithms. I understand some but still need a help with a few.the problem \n" ); document.write( "log ( 6, a^2+2 ) + log ( 6, 2 ) = 2 \n" ); document.write( "---- \n" ); document.write( "log6(a^2+2) + log6(2) = 2 \n" ); document.write( "--- \n" ); document.write( "log6[2a^2+4] = 2 \n" ); document.write( "--- \n" ); document.write( "2a^2+4 = 6^2 \n" ); document.write( "--- \n" ); document.write( "2a^2+4-36 = 0 \n" ); document.write( "2a^2-32 = 0 \n" ); document.write( "2(a^2-16) = 0 \n" ); document.write( "a^2-16 = 0 \n" ); document.write( "a = +/-4 \n" ); document.write( "============================\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "and finally the harder one for me is \n" ); document.write( "log ( 5, 64 ) - log ( 5, 8/3 ) + log ( 5, 2 ) = log ( 5, 4p ) \n" ); document.write( "--- \n" ); document.write( "log5(64) - log5(8/3) + log5(2) = log5(4p) \n" ); document.write( "------ \n" ); document.write( "log5[64*2/(8/3)] = log5(4p) \n" ); document.write( "--- \n" ); document.write( "log5[16/3] = log4(4p) \n" ); document.write( "--- \n" ); document.write( "4p = 16/3 \n" ); document.write( "p = 4/3 \n" ); document.write( "============================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "===================== \n" ); document.write( " |