document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=852612>Question 852612</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find an arithmetic sequence  of four terms whose sum is 10, if sum of their squares is 70 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #513562 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=513562\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> S = ½(2a + d(n-1))n<BR>\n" );
document.write( "10= 2(2a + 3d)<BR>\n" );
document.write( "10= 4a + 6d<BR>\n" );
document.write( "Try a=1 d=1<BR>\n" );
document.write( "or <BR>\n" );
document.write( "S = ½(a + an)n<BR>\n" );
document.write( "10 = ½(1 + 4)4<BR>\n" );
document.write( "10=2*5\r<BR>\n" );
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document.write( "1,2,3,4<BR>\n" );
document.write( "1+4+9+16=30\r<BR>\n" );
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document.write( "2+3+4+5=14\r<BR>\n" );
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document.write( "not possible.\r<BR>\n" );
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