document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=472987>Question 472987</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve the equation in the complex number system<BR>\n" );
document.write( "x^2+x+4=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #324312 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=324312\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x^2+x+4=0<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Use the Quadratic formula to get:<BR>\n" );
document.write( "x = [-1 +- sqrt(1-4*4)]/2<BR>\n" );
document.write( "---<BR>\n" );
document.write( "x = [1 +- sqrt(-15)]/2<BR>\n" );
document.write( "----<BR>\n" );
document.write( "x = (1/2) +- (1/2)sqrt(15)i<BR>\n" );
document.write( "================================<BR>\n" );
document.write( "cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );