Can these problems be simplified? (Algebra)

Can these two problems be simplified via FOIL?

20x + 24
_______
(x + 5)(x - 5)(x + 1)(x - 1)


and


8c^2 - c
________
(a + 2)(a -2)

No. Simplifying the top one is:

4 (5x+6)
_______
(x+5)(x-5)(x+1)(x-1) No common factors


c (8c-1)
_______

(a+2)(a-2) Also, no common factors