document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1177974>Question 1177974</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If ((1+x)/(1-x))= ((1-y)/(1+y)), find the value of (2+x)(2+y)+x^2<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 #807134 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=807134\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "If <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%281%2Bx%29%2F%281-x%29%29=+%28%281-y%29%2F%281%2By%29%29 ALIGN=MIDDLE  ALT=\"%28%281%2Bx%29%2F%281-x%29%29=+%28%281-y%29%2F%281%2By%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, find the value of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%2Bx%29%282%2By%29%2Bx%5E2 ALIGN=MIDDLE  ALT=\"%282%2Bx%29%282%2By%29%2Bx%5E2\"   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=%28%281%2Bx%29%2F%281-x%29%29=+%28%281-y%29%2F%281%2By%29%29 ALIGN=MIDDLE  ALT=\"%28%281%2Bx%29%2F%281-x%29%29=+%28%281-y%29%2F%281%2By%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >......   cross multiply\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2Bx%29%281%2By%29=+%281-x%29%281-y%29+ ALIGN=MIDDLE  ALT=\"%281%2Bx%29%281%2By%29=+%281-x%29%281-y%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >.....expand\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=xy+%2B+x+%2B+y+%2B+1=xy+-+x+-+y+%2B+1 ALIGN=MIDDLE  ALT=\"xy+%2B+x+%2B+y+%2B+1=xy+-+x+-+y+%2B+1\"   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=xy+%2B+x+%2B+y+%2B+1-xy+%2B+x+%2B+y+-+1=0 ALIGN=MIDDLE  ALT=\"xy+%2B+x+%2B+y+%2B+1-xy+%2B+x+%2B+y+-+1=0\"   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=2x+%2B+2y+=0 ALIGN=MIDDLE  ALT=\"2x+%2B+2y+=0\"   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=2%28x+%2B+y%29+=0 ALIGN=MIDDLE  ALT=\"2%28x+%2B+y%29+=0\"   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+%2B+y+=0 ALIGN=MIDDLE  ALT=\"x+%2B+y+=0\"   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=y+=-x ALIGN=MIDDLE  ALT=\"y+=-x\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "go to\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%2Bx%29%282%2By%29%2Bx%5E2 ALIGN=MIDDLE  ALT=\"%282%2Bx%29%282%2By%29%2Bx%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >.............substitute <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y ALIGN=MIDDLE  ALT=\"y\"   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=%282%2Bx%29%282-x%29%2Bx%5E2 ALIGN=MIDDLE  ALT=\"%282%2Bx%29%282-x%29%2Bx%5E2\"   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=4+-+x%5E2%2Bx%5E2 ALIGN=MIDDLE  ALT=\"4+-+x%5E2%2Bx%5E2\"   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=4+ ALIGN=MIDDLE  ALT=\"4+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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