document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=72727>Question 72727</A>: <I><SPAN STYLE=\"word-break: break-all;\"> when solving for quadric equations how do you get x equal to zero. do you do GCF? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #51990 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=51990\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The quadratic formula says:<BR>\n" );
document.write( "If ax^2+bx+c=0<BR>\n" );
document.write( "then x=[-b+-sqrt(b^2-4ac)]/(2a)<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "It is a means of determinaing the x-intercepts of a<BR>\n" );
document.write( "quadratic function.  Why?<BR>\n" );
document.write( "At the x-intercepts the y-value is zero.<BR>\n" );
document.write( "Therefore ax^2+bx+c=0<BR>\n" );
document.write( "Therefore the quadratic formula tells you the x-values <BR>\n" );
document.write( "that go with y=0.<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );