Question: Which of the following is the correct factorization of x² - 16?

Options:

1. (x - 4)(x + 4)
2. (x - 8)(x + 2)
3. (x + 8)(x - 2)
4. (x - 2)(x + 2)

Correct Answer: (x - 4)(x + 4)

Solution:

x² - 16 = (x - 4)(x + 4) (Difference of squares)