document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=311918>Question 311918</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Simplify this rational expression.\r<BR>\n" );
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document.write( "x^-3-x/x^-2-1\r<BR>\n" );
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document.write( "Thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #223029 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=223029\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Simplify this rational expression. <BR>\n" );
document.write( "x^-3-x/x^-2-1 <BR>\n" );
document.write( "----<BR>\n" );
document.write( "[(1-x^4)/x^3] / [(1-x^2)/x^2]<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Invert and multiply:<BR>\n" );
document.write( "[(1-x^4)/x^3] * [x^2/(1-x^2)]<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Cancel to get:<BR>\n" );
document.write( "= [(1+x^2)/x]<BR>\n" );
document.write( "===============<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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