Question: What is the value of (x + 2)^2?

Options:

1. x^2 + 4
2. x^2 + 4x + 4
3. x^2 + 2
4. x^2 + 2x + 2

Correct Answer: x^2 + 4x + 4

Solution:

Using the square of a binomial identity, (a + b)^2 = a^2 + 2ab + b^2, we have (x + 2)^2 = x^2 + 2(2)x + 2^2 = x^2 + 4x + 4.