document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=306522>Question 306522</A>: <I><SPAN STYLE=\"word-break: break-all;\"> which expression is equivalent to log(7)2401 - log(3)243<BR>\n" );
document.write( "1) log(4)2158<BR>\n" );
document.write( "2) 7 log 2401 - log 243<BR>\n" );
document.write( "3) -log(4) 2401/243<BR>\n" );
document.write( "4) -1 </SPAN>\n" );
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document.write( "Since 7*7*7*7 = 7^4 = 2401, log(7)2401 = 4<BR>\n" );
document.write( "Also 3*3*3*3*3 = 3^5 = 243, so log(3)243 = 5\r<BR>\n" );
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document.write( "The expression above then reduces to 4 - 5 = -1 </SPAN>\n" );
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