document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=177076>Question 177076</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve: x^4+5x^2+9 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #132139 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=132139\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You can't <i><b>solve</b></i> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E4%2B5x%5E2%2B9 ALIGN=MIDDLE  ALT=\"x%5E4%2B5x%5E2%2B9\"   DISABLED_style= \"max-width:90%; height:auto;\" >, because you haven't set your expression equal to anything.  Now if what you meant was <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E4%2B5x%5E2%2B9+=+0 ALIGN=MIDDLE  ALT=\"x%5E4%2B5x%5E2%2B9+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" >, THEN you have something that you can solve.\r<BR>\n" );
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document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t+=+x%5E2 ALIGN=MIDDLE  ALT=\"t+=+x%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, then <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E4+%2B+5x%5E2+%2B+9+=+0 ALIGN=MIDDLE  ALT=\"x%5E4+%2B+5x%5E2+%2B+9+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > is equivalent to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5E2+%2B+5t+%2B+9+=+0 ALIGN=MIDDLE  ALT=\"t%5E2+%2B+5t+%2B+9+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" >, which is a quadratic that needs to be solved with the quadratic formula:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t+=+%28-5+%2B-+sqrt%28+25-36+%29%29%2F2+=+%28-5+%2B-+i%2Asqrt%2811%29%29%2F2+ ALIGN=MIDDLE  ALT=\"t+=+%28-5+%2B-+sqrt%28+25-36+%29%29%2F2+=+%28-5+%2B-+i%2Asqrt%2811%29%29%2F2+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "but <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t+=+x%5E2 ALIGN=MIDDLE  ALT=\"t+=+x%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > so:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5B1%5D+=+sqrt%28+%28-5+%2B+i%2Asqrt%2811%29%29%2F2+%29+=+i%2Asqrt%285%29%2F2+%2B+sqrt%28i%2Asqrt%2811%29%29%2F2%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > or \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5B2%5D+=+-sqrt%28+%28-5+%2B+i%2Asqrt%2811%29%29%2F2+%29+=+-i%2Asqrt%285%29%2F2+-+sqrt%28i%2Asqrt%2811%29%29%2F2%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > or\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5B3%5D+=+sqrt%28+%28-5+-+i%2Asqrt%2811%29%29%2F2+%29+=+i%2Asqrt%285%29%2F2+-+sqrt%28i%2Asqrt%2811%29%29%2F2%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > or \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5B4%5D+=+-sqrt%28+%28-5+-+i%2Asqrt%2811%29%29%2F2+%29+=+-i%2Asqrt%285%29%2F2+%2B+sqrt%28i%2Asqrt%2811%29%29%2F2%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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