document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=899429>Question 899429</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The sum of n terms of the series 4+14+30 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #545414 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=545414\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> S = ½(2*A1 + (n-1)d)n<BR>\n" );
document.write( "A1=4<BR>\n" );
document.write( "d=16<BR>\n" );
document.write( "S = ½(2*4 + (n-1)16)n<BR>\n" );
document.write( "S = ½(8 + (n-1)16)n<BR>\n" );
document.write( "S= (4 + (n-1)8)n<BR>\n" );
document.write( "S=(4+8n-8)*n<BR>\n" );
document.write( "S=(8n-4)*n<BR>\n" );
document.write( "S=8n^2-4n<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );