Question

Factor this polynomial expression.

X²-16
O A. (x+4)(x - 4)
○ B. (x-4)(x-4)
C. (x+16)(x-16)
O D. (x-16)(x-16)

Answer 1

A

Explanation:

Using the rule of (x+a)(x-a), you get x^2-a^2. we know that the square root of 16 is 4, so plug in 4 for a and you get (x+4)(x-4)