document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=760702>Question 760702</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Determine the value(s) of the variable that must be excluded from the domain. \r<BR>\n" );
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document.write( "(x^2 - 16) / (-9x^2 + 27x + 36) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #462842 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39630)</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=462842\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Why do you want to exclude values from the domain?  The domain is the set of input  values or acceptable values for the independent variable, x.  \r<BR>\n" );
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document.write( "The denominator is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-9%28x%5E2-3x-4%29=-9%28x-4%29%28x%2B1%29 ALIGN=MIDDLE  ALT=\"-9%28x%5E2-3x-4%29=-9%28x-4%29%28x%2B1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and because this is the denominator, you must not allow it to be zero.  This effectively means <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%3C%3E4 ALIGN=MIDDLE  ALT=\"x%3C%3E4\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%3C%3E-1 ALIGN=MIDDLE  ALT=\"x%3C%3E-1\"   DISABLED_style= \"max-width:90%; height:auto;\" >. </SPAN>\n" );
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