Question

(x^3-1)/(x-1)?

Answer 1

google difference of cubs formula, apply it to the numerator and you should see that the term (x-1) divides out

Answer 2

thank you!

Answer 3

(x^3 - 1) = (x-1) (x^2 + x + 1)

answer is (x^2 + x + 1)