document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=616578>Question 616578</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use complete sentences to explain     how you would use graphing technology to find the solutions of\r<BR>\n" );
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document.write( "0 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-+x%5E2+%2B+2.5x+%2B+1+ ALIGN=MIDDLE  ALT=\"+-+x%5E2+%2B+2.5x+%2B+1+\"   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 #387777 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=387777\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Times New Roman\" size=\"+2\">\r<BR>\n" );
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document.write( "I would not use graphing technology to find the solutions of <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE -x^2\ +\ 2.5x\ +\ 1\ =\ 0\">.  That is because you cannot find the solutions of the given equation using graphing technology.  The solutions of the given equation are a conjugate pair of irrational numbers.  The best you can do with graphing technology is to determine a numerical approximation of the desired roots.  The quadratic formula or completing the square are the only two techniques that provide the exact solutions, namely: <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE\ \frac{5\ \pm\ \sqrt{41}}{4}\">\r<BR>\n" );
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document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi}\ +\ 1\ =\ 0\"><BR>\n" );
document.write( "My calculator said it, I believe it, that settles it<BR>\n" );
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