Answer: (x + 4)²
Step-by-step explanation: Because x² + 8x + 16 factors as two identical binomials, (x + 4)(x + 4), it is called a perfect square trinomial.
Recognizing perfect square trinomials will be an important skill for you to develop for future factoring problems.
Your answer is (x + 4)².
My work is attached in the image provided.
