Respuesta :

Factoring will make things much easier here.  The first fraction will look like

(x+1)^2
-------------  and the second, after inversion, will look like   1 / [ 2x (x+1) ].
(x-1)(x+1)

Then all you have to do is to simplify:


(x+1)^2                  1
------------- * ---------------
(x-1)(x+1)     (2x)(x+1)

After your first cancelling, you'll have:

(x+1)                  1
------------- * ---------------
(x-1)(x+1)     (2x)

and after your second, you'll have:

    1                  1              1
------------- * --------- = -------------   (answer)
(x-1)              (2x)       (2x)(x-1)
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