Question

(a) Find the product using suitable identity.
(a + 3) (a - 3) (a2 + 9)​

Answer 1

Answer:

a^2-3^2 (a^2+3^2)

=a^2-9×a^2+9

= a^4

Answer 2

Answer:

sorry but I don't know anyways sorry I can't help you