document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=999226>Question 999226</A>: <I><SPAN STYLE=\"word-break: break-all;\"> n=3, 3 and 2i are zeros, f(-1)=-20 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #616904 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=616904\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> two roots are (x-3)^2 <BR>\n" );
document.write( "two more are (x^2+4), because if 2i is a root, so is -2i<BR>\n" );
document.write( "a(x-3)^2(x^2+4)= polynomial<BR>\n" );
document.write( "a(x^2-6x+9)(x^2+4)<BR>\n" );
document.write( "a(x^4-6x^3+13x^2-24x+36)=0<BR>\n" );
document.write( "When x=(-1), y=-20<BR>\n" );
document.write( "a(1+6+13+24+36)=-20<BR>\n" );
document.write( "a(80)=-20<BR>\n" );
document.write( "a=(-1/4)<BR>\n" );
document.write( "polynomial is<BR>\n" );
document.write( "(-1/4)x^4+(3/2)x^3-(13/4)x^2+6x-9<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28300%2C200%2C-10%2C10%2C-50%2C10%2C%28-1%2F4%29x%5E4%2B%283%2F2%29x%5E3-%2813%2F4%29x%5E2%2B6x-9%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );