The answer is (4,8). I hope this helps.

Our expression is
.
Substitute in
. 
Follow the order of operations. Divide first. 
Add. 
Answer:
see explanation
Step-by-step explanation:
Given
- 16 ← difference of 2 squares and factors in general as
a² - b² = (a - b)(a + b)
- 16
= (p² )² - 4²
= (p² - 4)(p² + 4) ← (p² - 4) is also a difference of squares
= (p - 2)(p + 2)(p² + 4)
It should be 17.2 or 8.2 your welcome