document.write( "Question 185690: Solve for x and explain:\r
\n" );
document.write( "\n" );
document.write( "log[5] x=-2\r
\n" );
document.write( "\n" );
document.write( "Hint: [] stands for the number is written is subscript! \n" );
document.write( "
Algebra.Com's Answer #139282 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! From \"log rules\" we have (using your notation): \n" ); document.write( "log[a] x = N means that a^N = x \n" ); document.write( "where ^ represents exponent \n" ); document.write( ". \n" ); document.write( "So, for: \n" ); document.write( "log[5] x=-2 \n" ); document.write( "x = 5^(-2) \n" ); document.write( "x = 1/5^2 \n" ); document.write( "x = 1/25\r \n" ); document.write( "\n" ); document.write( ". \n" ); document.write( "Review log rules here: \n" ); document.write( "http://www.mathwords.com/l/logarithm_rules.htm \n" ); document.write( " |