document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=517755>Question 517755</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the answer to the quadratic equation, with the final answer worked out to a number: x2-4x-7=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #344899 by </B><A HREF=/tutors/aboutme.mpl?userid=deborabr><B>deborabr(181)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=deborabr><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=deborabr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=344899\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x2-4x-7=0<BR>\n" );
document.write( "delta-> (-4)^2-4*1*(-7)<BR>\n" );
document.write( "delta-> 16+28=44<BR>\n" );
document.write( "x=[-(-4)+/- root 44]/2*1<BR>\n" );
document.write( "=[4+/- root 44]/2<BR>\n" );
document.write( "x'=[4+ root 44]/2<BR>\n" );
document.write( "x\"=[4- root 44]/2 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );