Question: What is the solution to the inequality x^2 - 4 > 0?

Options:

1. x < -2 or x > 2
2. x > -2 and x < 2
3. x < 2
4. x > 4

Correct Answer: x < -2 or x > 2

Solution:

Factoring gives (x - 2)(x + 2) > 0. The critical points are x = -2 and x = 2. The solution set is x < -2 or x > 2.