Question

write factors of x^4 -1

Answer 1

Step-by-step explanation:

x^4-1

=(x)^4-(1)^4

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

Answer 2

Answer:

as a²-b² = (a+b)(a-b)

take a² = x⁴

and b² = 1

therefore

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