document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1035810>Question 1035810</A>: <I><SPAN STYLE=\"word-break: break-all;\"> For a proof by induction of the math statement below, identify the correct step for proving the theorem is true for n = k + 1.<BR>\n" );
document.write( "3^2+6^2+9^2+...\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #650444 by </B><A HREF=/tutors/aboutme.mpl?userid=JoelSchwartz><B>JoelSchwartz(130)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=JoelSchwartz><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=650444\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The formula for this sequence 3^2+6^2+9^2+... is (3n)^2 when n starts at one.<BR>\n" );
document.write( "When I substitute k+1 for n i get (3(k+1))^2 or (3k+3)^2 when k starts at zero for the first number of the sequence.<BR>\n" );
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