document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=772815>Question 772815</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I'm trying to simplify this complex rational expression and I keep getting -3/x-y the answer key keeps saying it should be 3/x+y can you help?\r<BR>\n" );
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document.write( "3/y - 3/x ÷ x^2-y^2/xy= </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #471125 by </B><A HREF=/tutors/aboutme.mpl?userid=John10><B>John10(297)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=John10><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=John10><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=471125\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (3/y - 3/x)/ [(x^2 - y^2)/ xy]\r<BR>\n" );
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document.write( "Work on the numerator first\r<BR>\n" );
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document.write( "3/y - 3/x = (3x - 3y)/xy = 3(x - y)/(xy)\r<BR>\n" );
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document.write( "The denominator:\r<BR>\n" );
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document.write( "[(x - y)(x + y)/(xy)]\r<BR>\n" );
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document.write( "Put them together in fraction form\r<BR>\n" );
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document.write( "[3(x - y)/(xy)]  * [(xy)/(x - y)(x + y)]\r<BR>\n" );
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document.write( "Cancel like terms from the numerator and denominator\r<BR>\n" );
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document.write( "The result is:\r<BR>\n" );
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document.write( "3/(x + y) <=== answer key\r<BR>\n" );
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document.write( "Hope it helps you!\r<BR>\n" );
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document.write( "Online math tutor (john100185@yahoo.com)\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );