The completely factored form of the provided polynomial is (p -2) (p+ 2) (p² +4). The option 4 is the correct option.
<h3>What is polynomial?</h3>
Polynomial equations is the expression in which the highest power of the unknown variable is n (n is a real number).
The polynomial equation given in the problem is,
![p^4 - 16](https://tex.z-dn.net/?f=p%5E4%20-%2016)
Let the factor form of the polynomial is f(p). Thus,
![f(p)=p^4 - 16\\f(p)=p^4 - 2^4\\f(p)=(p^2)^2- (2^2)^2](https://tex.z-dn.net/?f=f%28p%29%3Dp%5E4%20-%2016%5C%5Cf%28p%29%3Dp%5E4%20-%202%5E4%5C%5Cf%28p%29%3D%28p%5E2%29%5E2-%20%282%5E2%29%5E2)
Using the formula of difference of squares, we get,
![f(p)=(p^2-4)(p^2+4)\\f(p)=(p^2-2^2)(p^2+4)\\f(p)=(p-2)(p+2)(p^2+4)](https://tex.z-dn.net/?f=f%28p%29%3D%28p%5E2-4%29%28p%5E2%2B4%29%5C%5Cf%28p%29%3D%28p%5E2-2%5E2%29%28p%5E2%2B4%29%5C%5Cf%28p%29%3D%28p-2%29%28p%2B2%29%28p%5E2%2B4%29)
Thus, the completely factored form of the provided polynomial is (p -2) (p+ 2) (p² +4). The option 4 is the correct option.
Learn more about polynomial here;
brainly.com/question/24380382