document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=108443>Question 108443</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Simplify into one rational expression<BR>\n" );
document.write( "x^-1 - y^-2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #79095 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley71><B>checkley71(8403)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley71><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=79095\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> X^-1=1/X<BR>\n" );
document.write( "Y^-2=1/Y^2<BR>\n" );
document.write( "1/X-1/Y^2=(Y^2-X)/XY^2 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );