document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1204368>Question 1204368</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What number goes under the radical when solving this equation with the quadratic formula?\r<BR>\n" );
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document.write( "2x^2 - 4x - 30 = 0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #840567 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=840567\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2x^2 - 4x - 30 = 0\r<BR>\n" );
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document.write( "comparing with ax^2+bx+c<BR>\n" );
document.write( "a=2 , b=-4,c=-30\r<BR>\n" );
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document.write( "b^2-4ac is the discriminant\r<BR>\n" );
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document.write( "Plug a b c\r<BR>\n" );
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document.write( "(-4)^2-(4)(2)(-30)\r<BR>\n" );
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document.write( "16+240= 256\r<BR>\n" );
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