AM-2069

Stationary points

A Math · Secondary 4 · Medium · Stationary points

A function has derivative

f'(x)=4(x-1)(x+3)

.
Find the

x

-coordinates of the stationary points of

f(x)

.

$x=-3$ and $x=1$
$x=-4$ and $x=2$
$x=3$ and $x=-1$
$x=0$ and $x=-3$

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