Question: What is the value of: 5 × (3 + 2^2) - 4?

Options:

1. 21
2. 25
3. 17
4. 19

Correct Answer: 21

Solution:

First, calculate inside the parentheses: 2^2 = 4, so 3 + 4 = 7. Then, 5 × 7 = 35, and finally, 35 - 4 = 31.