document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=234492>Question 234492</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What are the next two terms in this sequence?<BR>\n" );
document.write( "15, 30, 20, 27, 25, 24, 30, 21, 35, 18, ___, ___<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #172909 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=172909\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This sequence requires a 2 level solution.<BR>\n" );
document.write( "15, 30, 20, 27, 25, 24, 30, 21, 35, 18, 6, 15 First find the difference.<BR>\n" );
document.write( " +15, -10, +7, -2, -1, +6, -9, -14,-17, Now find another level of differences.<BR>\n" );
document.write( "????+5,  -3, +5, -3, +5, -3, +5,  -3, +5, -3, <BR>\n" );
document.write( "Calculate the first missing number:<BR>\n" );
document.write( "-17+5=-12+18=6 ans.<BR>\n" );
document.write( "Calculate the next number:<BR>\n" );
document.write( "18-6=12-3=9+6=15 ans. </SPAN>\n" );
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