Question: What is the value of x in the equation 4x^2 - 16 = 0?

Options:

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

Correct Answer: x = 2

Solution:

Step 1: Add 16 to both sides: 4x^2 = 16. Step 2: Divide by 4: x^2 = 4. Step 3: Take the square root: x = 2 or x = -2.