Question

It must be solved using (a2-b2)identity .please help

Answer 1

(x^2)^2-(1)^2

(x^2+1)(x^2-1)

(x^2+1)(x+1)(x-1)

Answer 2

Answer:

Step-by-step explanation:

x^4-1

(x²)²-(1)²

a²-b²=(a-b)(a+b)

(x²-1)(x²+1)

[(x)²-(1)²](x²+1)

(x-1)(x+1)(x²+1)