Find all zeros of the polynomial function.
(Enter your answers as a commà-separated list. Enter all answers including repetit)
P (x) = x³ + 13x² - 13x - 169
x = ______
(Enter your answers as a commà-separated list. Enter all answers including repetit)
P (x) = x³ + 13x² - 13x - 169
x = ______