document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=759367>Question 759367</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1) Use a variety of ways to show that x^2-2x-15=0 has two solutions.<BR>\n" );
document.write( "2) Explain how changing one number in the equation x^2-2x-15=0 can result in no solution. <BR>\n" );
document.write( "Justify your answer. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #462001 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=462001\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> #2 is a question about the discriminant.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ax%5E2%2Bbx%2Bc=0 ALIGN=MIDDLE  ALT=\"ax%5E2%2Bbx%2Bc=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > has no solution (more correctly stated, no real solution) if <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%5E2-4ac%3C0 ALIGN=MIDDLE  ALT=\"b%5E2-4ac%3C0\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  You are free to choose any value that will work in your problem exercise.  The discriminant in the current equation in your #2 is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28%28-2%29%5E2-4%2A%28-15%29%29=4%2B60=64 ALIGN=MIDDLE  ALT=\"highlight%28%28-2%29%5E2-4%2A%28-15%29%29=4%2B60=64\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );