document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=982834>Question 982834</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve 4^(2x) = 7^(x&#8722;1).<BR>\n" );
document.write( "It's a logarithmic problem </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #603616 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=603616\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve 4^(2x) = 7^(x-1).<BR>\n" );
document.write( "---------<BR>\n" );
document.write( "2x*log(4) = (x-1)*log(7) = x*log(7) - log(7)<BR>\n" );
document.write( "2x*log(4) - x*log(7) = - log(7)<BR>\n" );
document.write( "x*log(16) - x*log(7) = - log(7)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2A%28log%287%29+-+log%2816%29%29+=+log%287%29 ALIGN=MIDDLE  ALT=\"x%2A%28log%287%29+-+log%2816%29%29+=+log%287%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x*log(7/16) = log(7)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+log%287%29%2Flog%287%2F16%29 ALIGN=MIDDLE  ALT=\"x+=+log%287%29%2Flog%287%2F16%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );