document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=30385>Question 30385</A>: <I><SPAN STYLE=\"word-break: break-all;\"> (1/a + 1) / (1/a2 - 1)\r<BR>\n" );
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document.write( "The book gives an answer as: a/1-a, but I just can't see how they get it.\r<BR>\n" );
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document.write( "You must first multiply both numerator and denominator by the LCD, right? Isn't this 2a? When I multiply both by it, I get:\r<BR>\n" );
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document.write( "(2 + 2a) / (1 - 2a)\r<BR>\n" );
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document.write( "and get stuck there. What am I doing wrong? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #17092 by </B><A HREF=/tutors/aboutme.mpl?userid=longjonsilver><B>longjonsilver(2297)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=longjonsilver><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=longjonsilver><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=17092\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Assuming you mean: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+1%2F%28a%2B1%29+%29+%2F+%28+1%2F%28a%5E2-1%29+%29+ ALIGN=MIDDLE  ALT=\"+%28+1%2F%28a%2B1%29+%29+%2F+%28+1%2F%28a%5E2-1%29+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >, we get:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+1%2F%28a%2B1%29+%29+%2A+%28+%28a%5E2-1%29%2F1+%29+ ALIGN=MIDDLE  ALT=\"+%28+1%2F%28a%2B1%29+%29+%2A+%28+%28a%5E2-1%29%2F1+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28a%5E2-1%29%2F%28a%2B1%29+ ALIGN=MIDDLE  ALT=\"+%28a%5E2-1%29%2F%28a%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=+%28%28a-1%29%28a%2B1%29%29%2F%28a%2B1%29+ ALIGN=MIDDLE  ALT=\"+%28%28a-1%29%28a%2B1%29%29%2F%28a%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=+%28a-1%29+ ALIGN=MIDDLE  ALT=\"+%28a-1%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "As for the answer you quote, a/(a-1), I cannot see how that was gotten, from the starting point i used.\r<BR>\n" );
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document.write( "jon.<BR>\n" );
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