document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=389809>Question 389809</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how do you find the zeros in this equation?\r<BR>\n" );
document.write( "\n" );
document.write( "x^5-5x^4-3x^3+15x^2-4x+20=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #276332 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=276332\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> find the zeros in this equation? <BR>\n" );
document.write( "x^5-5x^4-3x^3+15x^2-4x+20=0<BR>\n" );
document.write( "---<BR>\n" );
document.write( "I graphed it and found Real zeros at x = 2 and x = -2 and x = 5<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Use synthetic division to look for other zeros:<BR>\n" );
document.write( "2)....1....-5....-3....15....-4....20<BR>\n" );
document.write( "........1.....-3....-9....-3....-10...|..0<BR>\n" );
document.write( "====<BR>\n" );
document.write( "-2)......1......-5....1.....-5....|..0<BR>\n" );
document.write( "====<BR>\n" );
document.write( "5)........1.......0.....1.....|0\r<BR>\n" );
document.write( "\n" );
document.write( "----<BR>\n" );
document.write( "Quotient: x^2+1<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Complex zeros:<BR>\n" );
document.write( "x^2+1 = 0<BR>\n" );
document.write( "(x+i)(x-i) = 0<BR>\n" );
document.write( "x = -i or x = i<BR>\n" );
document.write( "=========================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );