document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=356270>Question 356270</A>: <I><SPAN STYLE=\"word-break: break-all;\">  what are rational expressions? Why must we always be mindful of the final value of the denominator in a rational expression? For example, consider the rational expression 3x/(x2 – 16). What values in the denominator must we be mindful of? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #254315 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=254315\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Rational functions are ratios of polynomials like rational numbers are ratios of integers.<BR>\n" );
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document.write( "Value that make the denominator equal zero, since division by zero is undefined.<BR>\n" );
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document.write( "What two values solve this equation? <BR>\n" );
document.write( "Those are the values to be mindful of.<BR>\n" );
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