Question

ollowing using suitable identities. Name
b) (7x + 3)(7x + 3)​

Answer 1

Answer:

49x^2 + 9 + 42x

Step-by-step explanation:

(7x + 3)^2

(7x)^2 + 3^2 + 2(7x*3)

(using identity (a+b)^2 = a^2 + b^2 + 2ab)

49x^2 + 9 + 42x

Answer 2

Answer:

• the question has to be (7x+3)(7x-3) then the answer will be (7x)2-(3)2

Step-by-step explanation:

1. in the above answer the "2"is the power i dont know how to write it :)
2. To solve this question first you have to learn the identities.

i think that the upper answer is correct.:/