document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=498924>Question 498924</A>: <I><SPAN STYLE=\"word-break: break-all;\"> use the discriminant to determine the number of solutions and whether they are real or complex.\r<BR>\n" );
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document.write( "x^2 + 6x - 7 = 0\r<BR>\n" );
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document.write( "z^2 + z + 1 = 0<BR>\n" );
document.write( "(3)^1/2 y^2 - 4y - 7(3)^1/2 = 0<BR>\n" );
document.write( "I can not figure these three out.  Please help! Thanks<BR>\n" );
document.write( "Suzie </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #337250 by </B><A HREF=/tutors/aboutme.mpl?userid=chessace><B>chessace(471)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=chessace><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=chessace><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=337250\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Discriminate of ax^2 + bx + c is sqrt(b^2-4ac)<BR>\n" );
document.write( "6^2+4*7*1>0 so 2 real roots<BR>\n" );
document.write( "1^2-4*1*1<0 so 2 complex roots<BR>\n" );
document.write( "16-4(3^1/2)(-7*(3^1/2))=16+4*7*3>0 so 2 real roots<BR>\n" );
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