Question 1094698
<pre>
It's not any of them.  The expression posted above 
simplifies to this:

{{{((2r - 3)(13r^3 - 11r^2 - 8r + 8))/((r - 1)^2(r + 1)(3r + 1))}}}

Apparently something was mistyped.  If you like, you can post the
correct expression in the thank-you note form below and I'll get back 
to you, showing you step-by-step.  I did not bother showing step-by-
step here because none of the choices are correct.

Edwin</pre>