document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=380585>Question 380585</A>: <I><SPAN STYLE=\"word-break: break-all;\"> For which value or values of k, if any,does the quadratic equation in x,\r<BR>\n" );
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document.write( "(k-8)xx +. Kx. -1. =0<BR>\n" );
document.write( "have exactly one solution </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #270180 by </B><A HREF=/tutors/aboutme.mpl?userid=Jk22><B>Jk22(389)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Jk22><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=Jk22><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=270180\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> There is 1 solution exactly when the discriminant is zero : <BR>\n" );
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document.write( " The discriminant is here the quantity : k^2-4*(-1)*(k-8) = k^2+4k-32 = (k+8)(k-4)<BR>\n" );
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document.write( "Hence when k=-8 or +4 there is one solution.<BR>\n" );
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document.write( "  </SPAN>\n" );
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