document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=772394>Question 772394</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello!\r<BR>\n" );
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document.write( "I am not sure I have posted this question in the correct topic, but I wasn't sure where else to put it. \r<BR>\n" );
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document.write( "I need to find: d/dx  [-1/1+x²]<BR>\n" );
document.write( "I have got as far as: d/dx [-1(1+x²]power -1<BR>\n" );
document.write( "But not sure how to solve from here..<BR>\n" );
document.write( "Can you please show all working.\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 #470830 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=470830\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You are really asking for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28d%2Fdx%29+%28%28-1%29%2F%281%2Bx%5E2%29%29 ALIGN=MIDDLE  ALT=\"%28d%2Fdx%29+%28%28-1%29%2F%281%2Bx%5E2%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=%28d%2Fdx%29%28-1%281%2Bx%5E2%29%5E-1%29=%28-1%29%28-1%29%28%281%2Bx%5E2%29%5E-2%29%28d%2Fdx%29%281%2Bx%5E2%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F%281%2Bx%5E2%29%5E2%29%2A2x ALIGN=MIDDLE  ALT=\"%281%2F%281%2Bx%5E2%29%5E2%29%2A2x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282x%29%2F%281%2Bx%5E2%29%5E2 ALIGN=MIDDLE  ALT=\"%282x%29%2F%281%2Bx%5E2%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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