document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=172247>Question 172247</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0321269470/algebrahomeworkh>Introductory Algebra</A><BR>\n" );
document.write( ": <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.\r<BR>\n" );
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document.write( "y = x^2 + 8x + 16 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #127231 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=127231\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> For:<BR>\n" );
document.write( "y = x^2 + 8x + 16<BR>\n" );
document.write( "a = 1<BR>\n" );
document.write( "b = 8<BR>\n" );
document.write( "c = 16<BR>\n" );
document.write( ".<BR>\n" );
document.write( "discriminant b^2 - 4ac<BR>\n" );
document.write( "= 8^2 - 4(1)(16)<BR>\n" );
document.write( "= 64 - 64<BR>\n" );
document.write( "= 0<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Since discriminant = 0, there is only \"one real solution\".<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );