document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=329767>Question 329767</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Which numbers cannot be used in place of the variable in each rational expression?\r<BR>\n" );
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document.write( "2x + 3\r<BR>\n" );
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document.write( "X^2 - 16 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #236382 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=236382\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (2x+3)/(x^2-16)<BR>\n" );
document.write( "(2x+3)/(x+4)(x-4)<BR>\n" );
document.write( "x cannot equal 4 or -4 because the denominator would be zero and division by zero is not allowed.<BR>\n" );
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document.write( "Ed </SPAN>\n" );
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