document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=907697>Question 907697</A>: <I><SPAN STYLE=\"word-break: break-all;\"> State the value of the  discriminant.  Then determine the number of real roots of the equation. \r<BR>\n" );
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document.write( "n(8n + 10) = -15 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #550501 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=550501\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> State the value of the discriminant. Then determine the number of real roots of the equation.<BR>\n" );
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document.write( "discriminant = b^2 - 4ac<BR>\n" );
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document.write( " n(8n + 10) = -15<BR>\n" );
document.write( "8n^2 + 10n + 15 = 0<BR>\n" );
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document.write( "a = 8 ; b = 10 ; c = 15<BR>\n" );
document.write( "b^2-4ac = 10^2 - 4*8*15 = 100 - 480 = -380<BR>\n" );
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document.write( "Ans: Since the discriminant is negative, the number of Real roots is zero.<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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