Question: What is the value of x in the equation 3x^2 - 12 = 0?

Options:

1. 2
2. 3
3. 4
4. 5

Correct Answer: 2

Solution:

Add 12 to both sides: 3x^2 = 12. Divide by 3: x^2 = 4. Take the square root: x = 2 or x = -2.