document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1001480>Question 1001480</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the sum of the first 10 terms of the geometric series 4-8+16-32+64 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #618713 by </B><A HREF=/tutors/aboutme.mpl?userid=fractalier><B>fractalier(6550)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fractalier><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=fractalier><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=618713\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> There is a closed form solution for this, but without that at my finger tips I would suggest looking at pairs...<BR>\n" );
document.write( "4-8 = -4<BR>\n" );
document.write( "16-32 = -16<BR>\n" );
document.write( "64-128 = -64<BR>\n" );
document.write( "256-512 = -256<BR>\n" );
document.write( "1024-2048 = -1024<BR>\n" );
document.write( "Add 'em up and get<BR>\n" );
document.write( "-1364 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );