document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=238615>Question 238615</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need help with something probably simple. I need to find all the numbers for which the rational expression is not defined on this problem   7 / 8v+9 . I am having the hardest time with this and I am sure  that it is simple for others. Thank You so much. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #175306 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=175306\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The expression isn't defined when the denominator is equal to zero. So solve <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8v%2B9=0 ALIGN=MIDDLE  ALT=\"8v%2B9=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > to get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=v=-9%2F8 ALIGN=MIDDLE  ALT=\"v=-9%2F8\"   DISABLED_style= \"max-width:90%; height:auto;\" >. So if <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=v=-9%2F8 ALIGN=MIDDLE  ALT=\"v=-9%2F8\"   DISABLED_style= \"max-width:90%; height:auto;\" >, then the expression <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2F%288v%2B9%29 ALIGN=MIDDLE  ALT=\"7%2F%288v%2B9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > is undefined. </SPAN>\n" );
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