document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1100953>Question 1100953</A>: <I><SPAN STYLE=\"word-break: break-all;\"> State how many imaginary and real zeros the function has.\r<BR>\n" );
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document.write( "f(x) = x^4 - 15x^2 - 16 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #715512 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=715512\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> State how many imaginary and real zeros the function has. <BR>\n" );
document.write( "f(x) = x^4 - 15x^2 - 16 <BR>\n" );
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document.write( "Factor to get (x^2-16)(x^2+1)<BR>\n" );
document.write( "Factor to get (x-4)(x+4)(x-i)(x+i)<BR>\n" );
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document.write( "Real zeros:: 4,-4<BR>\n" );
document.write( "Imaginary:: i,-i<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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