document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=157288>Question 157288</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0073268623/algebrahomeworkh>elementary and intermediate algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> How do I find the discriminant? The question ask to find <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%5E2-4ac ALIGN=MIDDLE  ALT=\"b%5E2-4ac\"   DISABLED_style= \"max-width:90%; height:auto;\" > and the number of real solutions to each equation.<BR>\n" );
document.write( "35. <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4m%5E2%2B25+=+20m ALIGN=MIDDLE  ALT=\"4m%5E2%2B25+=+20m\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "45. <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2=x ALIGN=MIDDLE  ALT=\"x%5E2=x\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #115915 by </B><A HREF=/tutors/aboutme.mpl?userid=SAT+Math+Tutor><B>SAT Math Tutor(36)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=SAT+Math+Tutor><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=115915\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Begin by setting up a quadratic equation equal to zero so:\r<BR>\n" );
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document.write( "35. 4m^2 - 20m + 25 = 0<BR>\n" );
document.write( "45. x^2 - x = 0\r<BR>\n" );
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document.write( "Then, label a, b, and c which are the coefficients:\r<BR>\n" );
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document.write( "35. a = 4, b = -20, c = 25<BR>\n" );
document.write( "45. a = 1, b = -1, c = 0\r<BR>\n" );
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document.write( "Then, use the discriminant formula b^2 - 4ac:\r<BR>\n" );
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document.write( "35. (-20)^2 - 4(4)(25) = 0<BR>\n" );
document.write( "45. 1^2 - 4(1)(0) = 1 </SPAN>\n" );
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