# How do you factor  1 - s^3?

$\left(1 - s\right) \left(1 + s + {s}^{2}\right)$
$\left({a}^{3} - {b}^{3}\right) = \left(a - b\right) \left({a}^{2} + a b + {b}^{2}\right)$
$\left(1 - {s}^{3}\right) = \left(1 - s\right) \left(1 + s + {s}^{2}\right)$