Question

B.
Answer the following questions.
(a) Find the product using suitable identity.
(a + 3) (a - 3) (a? + 9)​

Answer 1

Answer:

I think the value of a=27(not confirmly)

Answer 2

Answer:

(a+b)(a-b) =a square -b square

(a+3) (a-3)= a square -9