document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=353739>Question 353739</A>: <I><SPAN STYLE=\"word-break: break-all;\"> X4-9 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #252847 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=252847\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=X%5E4-9 ALIGN=MIDDLE  ALT=\"X%5E4-9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Can be rewritten as:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28X%5E2%29%5E2+-+3%5E2 ALIGN=MIDDLE  ALT=\"%28X%5E2%29%5E2+-+3%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Which is a \"difference of squares\" -- which factors to:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28X%5E2+-+3%29%28x%5E2+%2B+3%29 ALIGN=MIDDLE  ALT=\"%28X%5E2+-+3%29%28x%5E2+%2B+3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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