document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=824419>Question 824419</A>: <I><SPAN STYLE=\"word-break: break-all;\">  	Find all zeros of the function and write the polynomial as a product of linear factors.\r<BR>\n" );
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document.write( "f(x) = x^4 + 13x^2 + 36 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #496449 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=496449\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  	Find all zeros of the function and write the polynomial as a product of linear factors.\r<BR>\n" );
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document.write( "f(x) = x^4 + 13x^2 + 36<BR>\n" );
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document.write( "Sub for x^2, eg u, then it's a quadratic<BR>\n" );
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document.write( "Solve for u.<BR>\n" );
document.write( "Sub x^2 for u.<BR>\n" );
document.write( "Solve for x (4 solutions).<BR>\n" );
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