document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1017812>Question 1017812</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi, I don't get how this equation works. I have the answer, but I don't know why it's the answer:<BR>\n" );
document.write( "1/(x^2 + 1) + 1/(x+1) = x/(x^2-1)<BR>\n" );
document.write( "Could you please have a step-by-step explanation? Thanks in advance! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #634020 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</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=634020\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F%28x%5E2+%2B+1%29+%2B+1%2F%28x%2B1%29+=+x%2F%28x%5E2-1%29 ALIGN=MIDDLE  ALT=\"1%2F%28x%5E2+%2B+1%29+%2B+1%2F%28x%2B1%29+=+x%2F%28x%5E2-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Simplest common denominator is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%5E2%2B1%29%28x-1%29%28x%2B1%29 ALIGN=MIDDLE  ALT=\"%28x%5E2%2B1%29%28x-1%29%28x%2B1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Multiply left and right members by the common denominator.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%5E2%2B1%29%28x-1%29%28x%2B1%29%281%2F%28x%5E2+%2B+1%29+%2B+1%2F%28x%2B1%29%29=%28x%5E2%2B1%29%28x-1%29%28x%2B1%29%28x%2F%28x%5E2-1%29%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=%28x-1%29%28x%2B1%29%2B%28x%5E2%2B1%29%28x-1%29=x%28x%5E2%2B1%29 ALIGN=MIDDLE  ALT=\"%28x-1%29%28x%2B1%29%2B%28x%5E2%2B1%29%28x-1%29=x%28x%5E2%2B1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2-1%2Bx%5E3-x%5E2%2Bx-1=x%5E3%2Bx ALIGN=MIDDLE  ALT=\"x%5E2-1%2Bx%5E3-x%5E2%2Bx-1=x%5E3%2Bx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E3%2Bx%5E2-x%5E2-2=x%5E3%2Bx ALIGN=MIDDLE  ALT=\"x%5E3%2Bx%5E2-x%5E2-2=x%5E3%2Bx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-x%5E2-2=x ALIGN=MIDDLE  ALT=\"-x%5E2-2=x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2B2=-x ALIGN=MIDDLE  ALT=\"x%5E2%2B2=-x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2B2%2Bx=0 ALIGN=MIDDLE  ALT=\"x%5E2%2B2%2Bx=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2Bx%2B2=0 ALIGN=MIDDLE  ALT=\"x%5E2%2Bx%2B2=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >-------not factorable with integer coefficients.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%28-1%2B-+sqrt%281-4%2A2%29%29%2F2 ALIGN=MIDDLE  ALT=\"x=%28-1%2B-+sqrt%281-4%2A2%29%29%2F2\"   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=x=%28-1%2B-+sqrt%28-7%29%29%2F2 ALIGN=MIDDLE  ALT=\"x=%28-1%2B-+sqrt%28-7%29%29%2F2\"   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=highlight%28x=%28-1%2B-+i%2Asqrt%287%29%29%2F2%29 ALIGN=MIDDLE  ALT=\"highlight%28x=%28-1%2B-+i%2Asqrt%287%29%29%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
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