document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=571614>Question 571614</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How would you perform the indicated operation and simplify 6x over x+1plus 7 over x-1 minus 12 over x²-1?\r<BR>\n" );
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document.write( "6x/x+1+7/x–1– 12/x² –1 \r<BR>\n" );
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document.write( "margarida183@hotmail.com\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #368137 by </B><A HREF=/tutors/aboutme.mpl?userid=KMST><B>KMST(5328)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KMST><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=KMST><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=368137\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The problem is<BR>\n" );
document.write( "6x/(x+1)+7/(x–1)–12/(x²–1) = 6x/(x+1)+7/(x-1)-12/(x^2-1) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6x%2F%28x%2B1%29 ALIGN=MIDDLE  ALT=\"6x%2F%28x%2B1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >+<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2F%28x-1%29 ALIGN=MIDDLE  ALT=\"7%2F%28x-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >-<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12%2F%28x%5E2-1%29 ALIGN=MIDDLE  ALT=\"12%2F%28x%5E2-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "You need a common denominator<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2B1%29%28x-1%29=x%5E2-1 ALIGN=MIDDLE  ALT=\"%28x%2B1%29%28x-1%29=x%5E2-1\"   DISABLED_style= \"max-width:90%; height:auto;\" > would work, so<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6x%2F%28x%2B1%29 ALIGN=MIDDLE  ALT=\"6x%2F%28x%2B1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >+<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2F%28x-1%29 ALIGN=MIDDLE  ALT=\"7%2F%28x-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >-<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12%2F%28x%5E2-1%29 ALIGN=MIDDLE  ALT=\"12%2F%28x%5E2-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6x%28x-1%29%2F%28%28x%2B1%29%28x-1%29%29%2B7%28x%2B1%29%2F%28%28x-1%29%28x%2B1%29%29-12%2F%28%28x%2B1%29%28x-1%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%286x%5E2-6x%29%2F%28%28x%2B1%29%28x-1%29%29 ALIGN=MIDDLE  ALT=\"%286x%5E2-6x%29%2F%28%28x%2B1%29%28x-1%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >+<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%287x%2B7%29%2F%28%28x-1%29%28x%2B1%29%29 ALIGN=MIDDLE  ALT=\"%287x%2B7%29%2F%28%28x-1%29%28x%2B1%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >-<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12%2F%28%28x%2B1%29%28x-1%29%29 ALIGN=MIDDLE  ALT=\"12%2F%28%28x%2B1%29%28x-1%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%286x%5E2-6x%2B7x%2B7-12%29%2F%28%28x%2B1%29%28x-1%29%29 ALIGN=MIDDLE  ALT=\"%286x%5E2-6x%2B7x%2B7-12%29%2F%28%28x%2B1%29%28x-1%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%286x%5E2%2Bx-5%29%2F%28%28x%2B1%29%28x-1%29%29 ALIGN=MIDDLE  ALT=\"%286x%5E2%2Bx-5%29%2F%28%28x%2B1%29%28x-1%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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