document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=709093>Question 709093</A>: <I><SPAN STYLE=\"word-break: break-all;\"> vertex form, identify vertex.\r<BR>\n" );
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document.write( "   g(x)=X^2-12x+39  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #436388 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=436388\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We solve this by \"completing the square\":<BR>\n" );
document.write( " g(x)=x^2-12x+39 <BR>\n" );
document.write( " g(x)=(x^2-12x)+39 <BR>\n" );
document.write( " g(x)=(x^2-12x+36)+39-36 <BR>\n" );
document.write( " g(x)=(x-6)^2+3 (vertex form)<BR>\n" );
document.write( "Vertex: (6,3) </SPAN>\n" );
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