document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=269865>Question 269865</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need help on finding the potential rational zeros of the polynomial function<BR>\n" );
document.write( "f(x) = -4x^4 + 3x^2 - 4x + 6 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #197699 by </B><A HREF=/tutors/aboutme.mpl?userid=drk><B>drk(1908)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=drk><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=197699\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> First we apply P - N - I to help us view sign changes and possible combinations.<BR>\n" );
document.write( "P . . . . N . . . . I<BR>\n" );
document.write( "3 . . . . 1 . . . .0<BR>\n" );
document.write( "1 . . . . 1 . . . .2<BR>\n" );
document.write( "So we know that there must be 1 real negative root.<BR>\n" );
document.write( "-----------<BR>\n" );
document.write( "next we apply P / Q as<BR>\n" );
document.write( "P: +-1, +-2, +-3, +-6<BR>\n" );
document.write( "Q: +-1, +-2, +-4<BR>\n" );
document.write( "we take all possible fractions and get:<BR>\n" );
document.write( "P/Q = +-1, +-1/2 +-1/4, +-2, +-3, +-3/2, +-3/4, +-6<BR>\n" );
document.write( "This is our list of potential rational zeros </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );