Question

(a+2)(a-2)(a²+4)= simplify the identities ​

Answer 1

Answer:

a⁴ - 16

Step-by-step explanation:

(a + 2) (a - 2) (a² + 4)

as per the identity-- (a+b) (a-b) = a²- b²,

= (a² - 4) (a² + 4)

apply the same identity used above-- (a+b) (a-b) = a²- b²,

= (a²)² - 4²

Simplify it,

= a⁴ - 16