document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=274717>Question 274717</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve the equation by completing the square x2+3x-9=0.\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #200438 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=200438\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> solve the equation by completing the square <BR>\n" );
document.write( "x^2+3x-9=0<BR>\n" );
document.write( "---<BR>\n" );
document.write( "x^2 + 3x + ? = 9 + ?<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Complete the square:<BR>\n" );
document.write( "x^2 + 3x + (3/2)^2 = 9 + (3/2)^2<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Factor:<BR>\n" );
document.write( "(x+3/2)^2 = (36/3)+(9/4) = 45/4<BR>\n" );
document.write( "---<BR>\n" );
document.write( "x + (3/2) + (9/2)sqrt(5) or x+(3/2) = (-9/2)sqrt(5)<BR>\n" );
document.write( "----<BR>\n" );
document.write( "x = (-3+9sqrt(5))/2 or x = (-3-9sqrt(5))/2<BR>\n" );
document.write( "===============================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.  <BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );