Question

What is the factorisation of xcube +1

Answer 1

Answer:

(x+1) (x square - x + 1)

Step-by-step explanation:

xcube+1= xcube +1 cube

The sum of cubes identity tells us that :

a3+b3= (a+b) (a2-ab+b2)

Hence x cube+1 cube= (x+1) (x2-[x.1]+ 1square)=(x+1) (x square - x + 1)

Hope this helps you..