document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1113030>Question 1113030</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the logarithm equation. Type exact answer. 2logx-log(4x-40)-1=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #728078 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=728078\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2logx-log(4x-40)-1=0<BR>\n" );
document.write( "If it's base 10:<BR>\n" );
document.write( "log(x^2)-log(4x-40) = 1 = log(10)<BR>\n" );
document.write( "log(x^2)-log(4x-40) = 1 = log(10)<BR>\n" );
document.write( "log(x^2) = log(4x-40) + log(10)<BR>\n" );
document.write( "log(x^2) = log(10*(4x-40)) = log(40x - 400)<BR>\n" );
document.write( "x^2 = 40x - 400<BR>\n" );
document.write( "x^2 - 40x + 400 = 0<BR>\n" );
document.write( "(x-20)^2 = 0<BR>\n" );
document.write( "x = 20<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );