Question: Which of the following is the correct factorization of x² + 10x + 25?

Options:

1. (x + 5)²
2. (x + 10)(x + 5)
3. (x - 5)(x + 5)
4. (x + 25)(x + 1)

Correct Answer: (x + 5)²

Solution:

x² + 10x + 25 = (x + 5)².