document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1118269>Question 1118269</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the solution for this - log8 + log4 </SPAN>\n" );
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document.write( "(1) rewrite the expression as log4 - log8<br><BR>\n" );
document.write( "(2) Since logarithms are exponents, subtracting logarithms represents division.  So log4 - log8 = log(4/8) = log(1/2)<br><BR>\n" );
document.write( "Answer: -log8+log4 = log(1/2)<br><BR>\n" );
document.write( "The other two tutors both gave \"-log2\" as the answer.  The two answers are equivalent, so both are valid:<br><BR>\n" );
document.write( "log(1/2) = log1-log2 = 0-log2 = -log2<br><BR>\n" );
document.write( "or...<br><BR>\n" );
document.write( "log(1/2) = log(2^-1) = -1(log2) = -log2 </SPAN>\n" );
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