#### Answer

$x=-6$ and $x=2$

#### Work Step by Step

$f(x)$ represents the value of the function $f$ at $x$.
Note that the graph passes through the points $(-6, 0)$ and $(2, 0)$.
Thus, $f(-6) = 0$ and $f(2) = 0$.
Therefore. the values of $x$ for which $f(x)=0 $ are -6 and 2.