document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=634442>Question 634442</A>: <I><SPAN STYLE=\"word-break: break-all;\"> log (2x+1) base 2 - log (x-1) base 2 = 3 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #399598 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=399598\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> log (2x+1) base 2 - log (x-1) base 2 = 3<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "log2[(2x+1)(x-1)] = 3<BR>\n" );
document.write( "---<BR>\n" );
document.write( "(2x+1)(x-1) = 2^3<BR>\n" );
document.write( "----<BR>\n" );
document.write( "2x^2 -x -1 = 8<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "2x^2 -x -9 = 0<BR>\n" );
document.write( "----<BR>\n" );
document.write( "x = [1 +- sqrt(1-4*2*-9)]/4<BR>\n" );
document.write( "------<BR>\n" );
document.write( "Positive solution:<BR>\n" );
document.write( "x = [1+ sqrt(73)]/4<BR>\n" );
document.write( "----<BR>\n" );
document.write( "x = 2.386...<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "=============<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );