Respuesta :

Answer:

hope this helps

Step-by-step explanation:

Please fallow the steps it will help you

Step1: 4x^3 + 28x^2 + 7x + 49

Step 2: 4x^2(x+7) + 7(x+7)

Step 3: (4x^2+7)(x+7)

Step 4: (x+7)(4x^2+7)