document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=809376>Question 809376</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I know this equation has a quadratic form but if I factor out the x^2 it does not make sense.<BR>\n" );
document.write( "x^4-4x^2-12=0<BR>\n" );
document.write( "So how would I find the roots of this equation? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #487568 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=487568\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (x^2-6)(x^2+2)=0<BR>\n" );
document.write( ".<BR>\n" );
document.write( "x^2=6<BR>\n" );
document.write( "x=sqrt(6), x=-sqrt(6)<BR>\n" );
document.write( ".<BR>\n" );
document.write( "x^2=-2<BR>\n" );
document.write( "x=sqrt(2)i, x=-sqrt(2)i<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Ed </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );