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Given the rational function `f(x) = (x^2+11x+28)/(x^2-4x-32)` find any hole(s) of the function.

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   x  x    n  |   | (   ) π DNE
   x    (   ) π DNE
( ) ( ] [ ) [ ] —∞ DNE
< > or All Real Numbers DNE
log logn ln n  | | e 
sin cos tan arcsin arccos arctan  
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