document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=331681>Question 331681</A>: <I><SPAN STYLE=\"word-break: break-all;\"> f(x) = x2 – 4    apply the quadratic formula to find the roots of the given function, and then graph the function.     </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #237765 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=237765\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f(x)=x^2-4<BR>\n" );
document.write( "a=1,b=0,c=-4\r<BR>\n" );
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document.write( "..<BR>\n" );
document.write( "x1= (0+sqrt(0+16))/2<BR>\n" );
document.write( "x1=2<BR>\n" );
document.write( "x2= (0-sqrt(0+16))/2<BR>\n" );
document.write( "x2= -2<BR>\n" );
document.write( "..\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28300%2C300%2C-5%2C8%2C-5%2C5%2Cx%5E2-4%29 ALIGN=MIDDLE  ALT=\"graph%28300%2C300%2C-5%2C8%2C-5%2C5%2Cx%5E2-4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );