document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=81864>Question 81864</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 9x^2-120x-81=0\r<BR>\n" );
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document.write( "How is this worked out? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #58667 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley75><B>checkley75(3666)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley75><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=58667\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 9X^2-120X-81=0<BR>\n" );
document.write( "USING THE QUADRATIC EQUATION WE GET:<BR>\n" );
document.write( "X=(120+-SQRT[-120^2-4*9*-81])/(2*9)<BR>\n" );
document.write( "X=(120+-SQRT[14400+2906])/18<BR>\n" );
document.write( "X=(120+-SQRT17316)/18<BR>\n" );
document.write( "X=(120+-131.59)/18<BR>\n" );
document.write( "X=(120+131.59)/18<BR>\n" );
document.write( "X=251.59/18<BR>\n" );
document.write( "X=13.977 ANSWER<BR>\n" );
document.write( "X=(120-131.59)/18<BR>\n" );
document.write( "X=-11.59/18<BR>\n" );
document.write( "X=-.644 ANSWER. </SPAN>\n" );
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