Question

factotise the following: a^3+1​

Answer 1

Step-by-step explanation:

a^3 + 1

(a+1) (a^2+1+2a)

Answer 2

Answer:

I think !

Answer = (a+1) (a²- a + 1)

Step-by-step explanation:

a³ + 1 = a³ + 1³

The sum of cubes identity :

a³ + b³ = (a+b) (a² - ab + b²)

Hence, a³ + 1 = (a+1) (a² - (a • 1) +1²)

= (a+1) (a²- a + 1) (Answer)

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