document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1009877>Question 1009877</A>: <I><SPAN STYLE=\"word-break: break-all;\"> State the excluded values for the following expression. Then simplify the expression.  Please explain and show work.\r<BR>\n" );
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document.write( "(n^2-10n+9)/(n^2+n-90) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #625350 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20849)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=625350\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28n%5E2-10n%2B9%29%2F%28n%5E2%2Bn-90%29+ ALIGN=MIDDLE  ALT=\"%28n%5E2-10n%2B9%29%2F%28n%5E2%2Bn-90%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >.....factor and simplify first\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28n%5E2-9n-n%2B9%29%2F%28n%5E2%2B10n-9n-90%29+ ALIGN=MIDDLE  ALT=\"%28n%5E2-9n-n%2B9%29%2F%28n%5E2%2B10n-9n-90%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >   \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%28n%5E2-9n%29-%28n-9%29%29%2F%28%28n%5E2%2B10n%29-%289n%2B90%29%29+ ALIGN=MIDDLE  ALT=\"%28%28n%5E2-9n%29-%28n-9%29%29%2F%28%28n%5E2%2B10n%29-%289n%2B90%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28n%28n-9%29-%28n-9%29%29%2F%28n%28n%2B10%29-9%28n%2B10%29%29+ ALIGN=MIDDLE  ALT=\"%28n%28n-9%29-%28n-9%29%29%2F%28n%28n%2B10%29-9%28n%2B10%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%28n-1%29%28n-9%29%29%2F%28%28n-9%29%28n%2B10%29%29+ ALIGN=MIDDLE  ALT=\"%28%28n-1%29%28n-9%29%29%2F%28%28n-9%29%28n%2B10%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >  \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%28n-1%29cross%28%28n-9%29%29%29%2F%28cross%28%28n-9%29%29%28n%2B10%29%29+ ALIGN=MIDDLE  ALT=\"%28%28n-1%29cross%28%28n-9%29%29%29%2F%28cross%28%28n-9%29%29%28n%2B10%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28n-1%29%2F%28n%2B10%29+ ALIGN=MIDDLE  ALT=\"%28n-1%29%2F%28n%2B10%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "State the excluded values:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28n%5E2-10n%2B9%29%2F%28n%5E2%2Bn-90%29+ ALIGN=MIDDLE  ALT=\"%28n%5E2-10n%2B9%29%2F%28n%5E2%2Bn-90%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "denominator <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28n%5E2%2Bn-90%29+ ALIGN=MIDDLE  ALT=\"%28n%5E2%2Bn-90%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > cannot be equal to zero, so exclude the values of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n ALIGN=MIDDLE  ALT=\"n\"   DISABLED_style= \"max-width:90%; height:auto;\" > that make denominator equal to zero\r<BR>\n" );
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document.write( "since  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n%5E2%2Bn-90=%28n-9%29%29%28n%2B10%29+ ALIGN=MIDDLE  ALT=\"n%5E2%2Bn-90=%28n-9%29%29%28n%2B10%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > solutions are the excluded values and they are: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n=9 ALIGN=MIDDLE  ALT=\"n=9\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n=-10 ALIGN=MIDDLE  ALT=\"n=-10\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "so, domain is: <BR>\n" );
document.write( "{ <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n ALIGN=MIDDLE  ALT=\"n\"   DISABLED_style= \"max-width:90%; height:auto;\" > element <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R ALIGN=MIDDLE  ALT=\"R\"   DISABLED_style= \"max-width:90%; height:auto;\" > : <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n%3C%3E-10 ALIGN=MIDDLE  ALT=\"n%3C%3E-10\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n%3C%3E9 ALIGN=MIDDLE  ALT=\"n%3C%3E9\"   DISABLED_style= \"max-width:90%; height:auto;\" > }\r<BR>\n" );
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document.write( " </SPAN>\n" );
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