Factor x^(2)- 16

Question

Factor
`x^(2)`- 16

Answer 1

The answer is (X +4) (X -4)

Answer 2

(x - 4)(x + 4)

Explanation:

x² - 16 ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b) , then

x² - 16

= x² - 4²

= (x - 4)(x + 4)