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Find the zeros of the following cubic function:

$$f(x) = x^3 + 12x^2 - 160x$$

A

$x = 0$, $x = - 8$, $x = 20$

B

$x = 0$, $x = -10$, $x = 16$

C

$x = 0$, $x = 4$, $x = -40$

D

$x = 0$, $x = 8$, $x = -20$

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