Question

(a + 1) (a - 1) (a^2 + 1)​

Answer 1

Step-by-step explanation:

my simplification.......

not sure

hope it helps

Answer 2

Step-by-step explanation:

given:

• (a+1)(a-1)(a²+1)
• (a²-1)(a²+1). [(a+b)(a-b)=a²-b²]

.(a⁴-1)