document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=320648>Question 320648</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am trying to find all numbers for which the rational expression is undefined t^3-8t/t^2-25 can you help? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #229686 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=229686\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I am trying to find all numbers for which the rational expression is undefined t^3-8t/t^2-25 can you help?<BR>\n" );
document.write( "We know that it will be undefined when the denominator = 0<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Put the expression in the denominator = 0<BR>\n" );
document.write( "x^2 - 25 = 0<BR>\n" );
document.write( "add 25 to both sides<BR>\n" );
document.write( "x^2 = 25<BR>\n" );
document.write( "x = +/-<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2825%29 ALIGN=MIDDLE  ALT=\"sqrt%2825%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "therefore<BR>\n" );
document.write( "x = +5<BR>\n" );
document.write( "and<BR>\n" );
document.write( "x = -5<BR>\n" );
document.write( ":<BR>\n" );
document.write( "These two values make the expression have a 0 denominator, hence, undefined </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );