document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=964267>Question 964267</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve by making a u-substitution. X(to the 4th power)-84x(to the 2nd power)+320=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #589173 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=589173\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve by making a u-substitution. X(to the 4th power)-84x(to the 2nd power)+320=0<BR>\n" );
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document.write( "Sub u for x^2<BR>\n" );
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document.write( "u^2 - 84u + 320 = 0<BR>\n" );
document.write( "Solve for u, then sub back. </SPAN>\n" );
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