document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=162825>Question 162825</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the sum of the first 307 even numbers? There is know textbook. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #120030 by </B><A HREF=/tutors/aboutme.mpl?userid=orca><B>orca(409)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=orca><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=120030\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The numbers are 2, 4, 6, ......614.<BR>\n" );
document.write( "It can be written as:<BR>\n" );
document.write( "2x1, 2x2, 2x3, 2x4, ..........2x306, 2x307\r<BR>\n" );
document.write( "\n" );
document.write( "So<BR>\n" );
document.write( "2x1, 2x2, 2x3, 2x4, ..........2x306, 2x307<BR>\n" );
document.write( "= 2(1 + 2 + 3 + 4 +........+306 + 307)<BR>\n" );
document.write( "= 2x307x308/2  (Note that 1 + 2 + 3 + .... + n = n(n+1)/2)<BR>\n" );
document.write( "= 307x308<BR>\n" );
document.write( "= 94556<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );