document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1093348>Question 1093348</A>: <I><SPAN STYLE=\"word-break: break-all;\"> could you please help me with this equation in interval notation <BR>\n" );
document.write( "(x-9)(x+3)(x+6)>(or equal) 0\r<BR>\n" );
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document.write( "I tried and got [9,infinity) but I don't know if I am supposed to use the sign diagram where it would be positive inbetween (-6,-3) U (9,infinity) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #707990 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=707990\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (x-9)(x+3)(x+6)>(or equal) 0\r<BR>\n" );
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document.write( "(x-9)(x+3)(x+6)>=0\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x-9%29%28x%2B3%29%28x%2B6%29%3E=0 ALIGN=MIDDLE  ALT=\"%28x-9%29%28x%2B3%29%28x%2B6%29%3E=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Three critical x-values are  -6, -3, and 9.<BR>\n" );
document.write( "The intervals on the real number line you want to check are (-infinity, -6], [-6, -3], [-3, 9], and [9, infinity).<BR>\n" );
document.write( "Check any value within each interval to find if that interval works or not works.\r<BR>\n" );
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document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">\r\n" );
document.write( "             (-infinity, -6]          [-6, -3]          [-3, 9]         [9, infinity)\r\n" );
document.write( "signs        (-)(-)(-)                (-)(-)(+)         (-)(+)(+)       (+)(+)(+)\r\n" );
document.write( "result sign   (-)                       (+)              (-)             (+)\r\n" );
document.write( "              FALSE                      TRUE            FALSE           TRUE\r\n" );
document.write( "</PRE><BR>\n" );
document.write( "The solution set, of all the numbers that can make the equation true is<BR>\n" );
document.write( "[-6,-3] U [9, infinity).\r<BR>\n" );
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document.write( "NOTE:  the form of the bracket for the interval notation, is important.  Square bracket INCLUDES the boundary value.  Curved bracket EXCLUDES the boundary value. </SPAN>\n" );
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