Respuesta :

Answer:

(x+7)² = x²+14x+49

Step-by-step explanation:

(x+7)² = (x+7)(x+7) = x²+7x+7x+49

Answer:

x² + 14x + 49

Here is the answer fellow Nepali

Step-by-step explanation:

(x + 7)² = x² + 14x + 49

using (a+b)² = a² +2ab + b²