document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=699419>Question 699419</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find the zeroes:\r<BR>\n" );
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document.write( "f(x) = x^4+x^2-20 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #431354 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=431354\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> find the zeroes: <BR>\n" );
document.write( "f(x) = x^4+x^2-20<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Solve:<BR>\n" );
document.write( "x^4 + x^2 - 20 = 0<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Factor:<BR>\n" );
document.write( "(x^2+5)(x^2-4) = 0<BR>\n" );
document.write( "---<BR>\n" );
document.write( "x = +-sqrt(5) or x = +-2i<BR>\n" );
document.write( "-----------------------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "=============== </SPAN>\n" );
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