document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=83062>Question 83062</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve by completing the square.\r<BR>\n" );
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document.write( "3x^2-9x-31=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #59624 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=59624\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve by completing the square. <BR>\n" );
document.write( "3x^2-9x-31=0<BR>\n" );
document.write( "3(x^2-3x+(3/2)^2=31+3(3/2)^2<BR>\n" );
document.write( "3(x+(3/2))^2 = 151/4<BR>\n" );
document.write( "(x+(3/2))^2=151/12<BR>\n" );
document.write( "x= (-3/2) + (sqrt(151/12)) or x=(-3/2)-(sqrt(151/12))<BR>\n" );
document.write( "x=-2.0473 or x=-5.047<BR>\n" );
document.write( "=========================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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