Answer:
(x - 1)(x² + x + 1)
Step-by-step explanation:
x³ - 1 is a difference of cubes and factors in general as
a³ - b³ = (a - b)(a² + ab + b²)
here a = x and b = 1, thus
x³ - 1 = (x - 1)(x² + x + 1)
