document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=155983>Question 155983</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Evaluate the discriminant b^2-4ac.  Then use the answer to state how many real-number solutions exist for the equation.<BR>\n" );
document.write( "&#12310;y=x&#12311;^2+8x+16<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #115047 by </B><A HREF=/tutors/aboutme.mpl?userid=SAT+Math+Tutor><B>SAT Math Tutor(36)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=SAT+Math+Tutor><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=115047\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In this case, a = 1, b = 8, and c = 16 so <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8%5E2+-+4%2A1%2A16+=+64+-+64+=+0 ALIGN=MIDDLE  ALT=\"8%5E2+-+4%2A1%2A16+=+64+-+64+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "When the discriminant equals 0, by rule, you have 1 real solution. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );