document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=38029>Question 38029</A>: <I><SPAN STYLE=\"word-break: break-all;\"> write the first four terms of the sequence a1=-3, an=(-2)an-1;n=2,3,4,...  How do I do this problem? <BR>\n" );
document.write( "Is the answer -3,-5,-7,-9 or did I do it wrong?  Thank you. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #23527 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=23527\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  write the first four terms of the sequence a1=-3, an=(-2)an-1;n=2,3,4,... How do I do this problem? <BR>\n" );
document.write( "Is the answer -3,-5,-7,-9 or did I do it wrong? \r<BR>\n" );
document.write( "\n" );
document.write( "a(n)=-2[a(n-1)]<BR>\n" );
document.write( "a(1)=-3<BR>\n" );
document.write( "a(2)=-2(-3)=6<BR>\n" );
document.write( "a(3)=-2(6)=-12<BR>\n" );
document.write( "a(4)=-2(-12)=24<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );