Question

plz answer me fast ​

Answer 1

I hope it is helpful to you

Answer 2

Answer:

x² + 14x + 49

Step-by-step explanation:

(x + 7) (x + 7) = (x + 7)²

(x + 7)² = x² + (2 x 'x' x 7) + 7²   (First Identity)

= x² + 14x + 49

Therefore, your answer is x² + 14x + 49

Hope this helps...