document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=6533>Question 6533</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%5E4+%2B+b%5E2+-+20+=+0 ALIGN=MIDDLE  ALT=\"b%5E4+%2B+b%5E2+-+20+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #3533 by </B><A HREF=/tutors/aboutme.mpl?userid=longjonsilver><B>longjonsilver(2297)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=longjonsilver><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=longjonsilver><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=3533\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> this is just a quadratic...let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a=b%5E2 ALIGN=MIDDLE  ALT=\"a=b%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, so the equation becomes\r<BR>\n" );
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document.write( "so, now factorise to (a+5)(a-4) = 0\r<BR>\n" );
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document.write( "--> a = -5 or a = 4\r<BR>\n" );
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document.write( "so <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%5E2+=+4 ALIGN=MIDDLE  ALT=\"b%5E2+=+4\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%5E2+=+-5 ALIGN=MIDDLE  ALT=\"b%5E2+=+-5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "so b = +2 or -2 or b = +<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%285%29i ALIGN=MIDDLE  ALT=\"sqrt%285%29i\"   DISABLED_style= \"max-width:90%; height:auto;\" > or -<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%285%29i ALIGN=MIDDLE  ALT=\"sqrt%285%29i\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "jon.\r<BR>\n" );
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