Question: What are the solutions to the equation x^2 - 4 = 0?

Options:

1. x = 2, -2
2. x = 4, -4
3. x = 0, 4
4. x = 0, -4

Correct Answer: x = 2, -2

Solution:

Factoring gives (x - 2)(x + 2) = 0. Thus, the solutions are x = 2 and x = -2.