document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=697745>Question 697745</A>: <I><SPAN STYLE=\"word-break: break-all;\"> For what value of x is the rational expression below undefined?<BR>\n" );
document.write( "3x - 5/x - 6 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #430266 by </B><A HREF=/tutors/aboutme.mpl?userid=Positive_EV><B>Positive_EV(69)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Positive_EV><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=Positive_EV><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=430266\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In general, for value of a function to be defined for real numbers two things must be true:<br>\r<BR>\n" );
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document.write( "1) All values under a square root (or even-powered root) must be non-negative<BR>\n" );
document.write( "2) Any value in a denominator cannot equal 0.<br>\r<BR>\n" );
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document.write( "There's no square roots to worry about here, but the middle term, 5/x, has an x in the denominator. This is not defined when x = 0. </SPAN>\n" );
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