Answer:

Step-by-step explanation:

Answer:it’s a
Step-by-step explanation:
Answer:
4x² + 4x + 1
Step-by-step explanation:
We know that (a + b)² = a² + 2ab + b², therefore, (2x + 1)² = 4x² + 4x + 1.
I only see a black image, can you resend the image? or type it out here