document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=246725>Question 246725</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is 2 to the power of (12-2x)= 16 ? using logarithms </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #180091 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=180091\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Well we know that 2^4=16<BR>\n" );
document.write( "but we want to use logarithms.<BR>\n" );
document.write( "so take the log in base 2 of both sides. Log 16 base 2 also happens to be 4<BR>\n" );
document.write( "12-2x=4<BR>\n" );
document.write( "8=2x<BR>\n" );
document.write( "4=x<BR>\n" );
document.write( "everything is coming up roses (4)<BR>\n" );
document.write( "check<BR>\n" );
document.write( "2^(12-2*4)=2^(12-8)=2^4=16<BR>\n" );
document.write( "ok\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );