document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=631338>Question 631338</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose ax^2+bx+c=0 is a quadratic equation which has real complex roots. Why should it have complex conjugate roots? [Hint: Think of how roots of a quadratic equation are derived using the quadratic formula]\r<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 #397678 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=397678\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Derive the quadratic formula by completing the square. Somewhere in there you'll see that if the roots are non-real, then they are complex conjugates. </SPAN>\n" );
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