document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=882137>Question 882137</A>: <I><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "Select the approximate values of x that are solutions to f(x) = 0, where\r<BR>\n" );
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document.write( "f(x) = -5x2 + 9x + 3.\r<BR>\n" );
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document.write( "possible answers please help\r<BR>\n" );
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document.write( "{–1.67, 3.00}\r<BR>\n" );
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document.write( "{-5, 9}\r<BR>\n" );
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document.write( "{–1.80, –0.60}\r<BR>\n" );
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document.write( "{–0.29, 2.09}<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #532719 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=532719\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%28-9%2B-+sqrt%2881-4%2A%28-5%293%29%29%2F%28-10%29 ALIGN=MIDDLE  ALT=\"x=%28-9%2B-+sqrt%2881-4%2A%28-5%293%29%29%2F%28-10%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%28-9%2B-+sqrt%2881%2B60%29%29%2F%28-10%29 ALIGN=MIDDLE  ALT=\"x=%28-9%2B-+sqrt%2881%2B60%29%29%2F%28-10%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%28-9%2B-+sqrt%28141%29%29%2F-10 ALIGN=MIDDLE  ALT=\"x=%28-9%2B-+sqrt%28141%29%29%2F-10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%289%2B-+sqrt%28141%29%29%2F10 ALIGN=MIDDLE  ALT=\"x=%289%2B-+sqrt%28141%29%29%2F10\"   DISABLED_style= \"max-width:90%; height:auto;\" >,  141=3*47<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%289%2B-+11.874%29%2F10 ALIGN=MIDDLE  ALT=\"x=%289%2B-+11.874%29%2F10\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Examining your four choices and comparing to your expression for x, you must have exactly one positive solution and one negative solution.  Your added form is positive and your subtraction form is negative.  You can eliminate choice 3.  The added form is estimable to be about (10+10)/10=2, approximately.  This suggests choice number neither choice 1 nor 2.<BR>\n" );
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document.write( "The subtraction form?  approx. -2/10=-1/5.  This looks like choice 4 is the closest choice.  <b>{-0.29, 2.09}</b>. \r<BR>\n" );
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document.write( "Finish computing x.  <b>{-0.2874, 2.0874}</b>.<BR>\n" );
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