document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=177023>Question 177023</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Which numbers cannot be used in place of the variable in each rational expession?\r<BR>\n" );
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document.write( "2y+1/y^2-y-6<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #132070 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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=132070\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Which numbers are not allowed in the denominator? The values of y that make the denominator = zero. So, set the denominator = to zero and solve for the values of y that satisfy the equation.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y%5E2-y-6+=+0 ALIGN=MIDDLE  ALT=\"y%5E2-y-6+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > Factor the equation.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28y%2B2%29%28y-3%29+=+0 ALIGN=MIDDLE  ALT=\"%28y%2B2%29%28y-3%29+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > Apply the zero product rule.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y%2B2+=+0 ALIGN=MIDDLE  ALT=\"y%2B2+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y-3+=+0 ALIGN=MIDDLE  ALT=\"y-3+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > so...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y+=+-2%29 ALIGN=MIDDLE  ALT=\"highlight%28y+=+-2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y+=+3%29 ALIGN=MIDDLE  ALT=\"highlight%28y+=+3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > These are the \"excluded\" values of y.<BR>\n" );
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