document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=5748>Question 5748</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the domain of:<BR>\n" );
document.write( "f(x)= x/xsquared+3x-4 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #2975 by </B><A HREF=/tutors/aboutme.mpl?userid=longjonsilver><B>longjonsilver(2297)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=longjonsilver><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=longjonsilver><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=2975\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f(x)= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2F%28x%5E2%2B3x-4%29 ALIGN=MIDDLE  ALT=\"x%2F%28x%5E2%2B3x-4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "factorise the denominator --> (x-1)(x+4)\r<BR>\n" );
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document.write( "So the denominator is ok for any value of x, except 2 values --> x=+1 and x=-4. Eith of these, means that the denominator is zero. And a zero on a denominator is NOT good --> you get infinity as the answer.\r<BR>\n" );
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document.write( "So your domain is xeR, but x not 1 or -4.\r<BR>\n" );
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document.write( "jon.<BR>\n" );
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