document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=88307>Question 88307</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have a question I need help with it reads<BR>\n" );
document.write( "Find the values of x for which the rational expression<BR>\n" );
document.write( "  <BR>\n" );
document.write( "                  x-5<BR>\n" );
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document.write( "                 x2-16         is undefined </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #64157 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=64157\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> When is<BR>\n" );
document.write( "(x-5) / (x^2 - 16)<BR>\n" );
document.write( "undefined?<BR>\n" );
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document.write( "It is undefined when the denominator equals zero.<BR>\n" );
document.write( "When is that?<BR>\n" );
document.write( "x^2-16 = 0 when x = 4 or x = -4.\r<BR>\n" );
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document.write( "=====================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );