document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=465819>Question 465819</A>: <I><SPAN STYLE=\"word-break: break-all;\"> log4(x^2-12x)-log4 x=1 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #319242 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=319242\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> log4(x^2-12x)-log4(x) = 1<BR>\n" );
document.write( "----<BR>\n" );
document.write( "log4[x(x^2-12x)] = 1<BR>\n" );
document.write( "----<BR>\n" );
document.write( "x^3-12x = 4<BR>\n" );
document.write( "----<BR>\n" );
document.write( "x^3-12x-4 = 0<BR>\n" );
document.write( "----<BR>\n" );
document.write( "I graphed it and found Real roots <BR>\n" );
document.write( "at x = -0.3365; x = -3.2836; and x = 3.6201<BR>\n" );
document.write( "==================================<BR>\n" );
document.write( "None of these is an acceptable answer because log4(anything)<BR>\n" );
document.write( "only has meaning if \"anything\" is positive.<BR>\n" );
document.write( "Checking you will find that none of the \"answers\" meets<BR>\n" );
document.write( "that criteria.<BR>\n" );
document.write( "======================================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );