Question

Find the product using suitable identify. (a+3) ( a-3) (a^2+9)​

Answer 1

Answer:

$(a + b) (a-b) = {a}^{2} - {b}^{2}$

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

a^2*2-3^2*2

a^4-3^4

a^4-81

Answer 2

Step-by-step explanation:

the question uses one and only identity that is( a^2-b^2)=(a+b)(a-b).