document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1043515>Question 1043515</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve<BR>\n" );
document.write( "log(2k+4)=1+logk\r<BR>\n" );
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document.write( "is this statement true? Explain.<BR>\n" );
document.write( "log(-3)+log(-4)=log12<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #658645 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=658645\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> log(2k+4)=1+logk<BR>\n" );
document.write( "log (2k+4)-log (k)=1<BR>\n" );
document.write( "log [(2k+4)/(k)]=1<BR>\n" );
document.write( "raise everything to the 10 power<BR>\n" );
document.write( "(2k+4)/(k)=10<BR>\n" );
document.write( "2k+4=10k<BR>\n" );
document.write( "8k=4<BR>\n" );
document.write( "k=(1/2)<BR>\n" );
document.write( "substitute in.<BR>\n" );
document.write( "log (5)=1+log (1/2)<BR>\n" );
document.write( "log (5)=1-log(2)<BR>\n" );
document.write( "log (5)+log (2)=1<BR>\n" );
document.write( "log (10)=1, and that is true.<BR>\n" );
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document.write( "the second is not true. log (-3) does not exist. </SPAN>\n" );
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