Question

Factorisation of x3 +1 is (a) (x + 1)(x2-x+1) (c) (x + 1)(x2+x + 1) (b) (x + 1)(x 2-x-1) (d) (x + 1)(x2+1)​

Answer 1

Answer:

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

Step-by-step explanation:

It can be written as x^3 + 1^3

a^3 + b^3 = (a + b)(a^2 + b^2 - ab)

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