document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=765304>Question 765304</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Describe the nature of the roots of the equation x^2-4x+4=0, when I worked this problem out I got:<BR>\n" );
document.write( "a=1,b=-4,c=4<BR>\n" );
document.write( "d=b^2-4ac<BR>\n" );
document.write( "d=(-4)^2-4(1)(4)<BR>\n" );
document.write( "d=16-16=0<BR>\n" );
document.write( " the answer 0 is one real root according to the \"nature of the roots\"  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #466068 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=466068\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You are correct.<BR>\n" );
document.write( "The \"one root\" is:<BR>\n" );
document.write( "-b/(2a)=-(-4)/(2)= 2 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );