document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=316423>Question 316423</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the x-coordinate of the vertex of the parabola whose equation is y = 3x2 + 12x + 5?\r<BR>\n" );
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document.write( "x = -4  , x= - 3 , OR x= - 2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #226334 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=226334\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What is the x-coordinate of the vertex of the parabola whose equation is y = 3x2 + 12x + 5?<BR>\n" );
document.write( "a = 3 ; b = 12 ; c = 5<BR>\n" );
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document.write( "Vertex occurs where x = -b/2a = -12/(2*3) = -2<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( "x = -4 , x= - 3 , OR x= - 2<BR>\n" );
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