document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=48578>Question 48578</A>: <I><SPAN STYLE=\"word-break: break-all;\"> apply the quadratic formula to find the roots of the given function, and then graph the function.    \r<BR>\n" );
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document.write( "  f(x) = x^2 + 4\r<BR>\n" );
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document.write( " g(x) = x^2 + x + 12<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #32176 by </B><A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><B>tutorcecilia(2152)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><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=tutorcecilia><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=32176\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f(x) = x^2 + 4 <BR>\n" );
document.write( "Let:<BR>\n" );
document.write( "a=1<BR>\n" );
document.write( "b=0<BR>\n" );
document.write( "c=4<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%28-0+%2B-+sqrt%28+-16%29+%29%29%2F%282%29%29+ ALIGN=MIDDLE  ALT=\"x+=+%28-0+%2B-+sqrt%28+-16%29+%29%29%2F%282%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > [Simplify]<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%28-0+%2B-+4i%29%2F2+%29%29%29+ ALIGN=MIDDLE  ALT=\"x+=+%28-0+%2B-+4i%29%2F2+%29%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >[Cancel out]<BR>\n" );
document.write( "x = +-2i [x = -2i or x = +2i] [Final answers]<BR>\n" );
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document.write( "g(x) = x^2 + x + 12 <BR>\n" );
document.write( "Let:<BR>\n" );
document.write( "a = 1<BR>\n" );
document.write( "b = 1<BR>\n" );
document.write( "c = 12<BR>\n" );
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