Find the product:

(p + 2) (p – 2)(p² + 4)

First solving (p+2) (p–2)

Using the identity (a +b) (a–b) = a² – b²

Here a = p and b = 2

= p² – 2²

= p² – 4

Now solving (p² + 4) (p² – 4)

Again Using the identity (a +b) (a–b) = a² – b²

Here a = p² and b = 4

= (p²)² – 4²

= p⁴ – 16 (∵ (a^x)^m = a ^xm)