<PRE><B>Question 28083</B>
i am not quite sure what your question is... you seem to have 3 parts to it, with 2 equals signs. Please confirm that this is correct.


Looking at it, i think you meant to type the following:

{{{ 1/(r^2-1) = 2/(r^2+r-2) }}}
{{{ 1/((r+1)(r-1)) = 2/((r-1)(r+2)) }}}
{{{ 1/(r+1) = 2/(r+2) }}}
(r+2) = 2(r+1)
r+2 = 2r+2
2 = r+2
0 = r


so, answer is r=0


jon.

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