Answer
-12, 7, and 9
Work Step by Step
To find the zeros of the function, equate each factor to zero then solve each equation:
$x+12=0 \text{ or } x-9=0 \text{ or } x-7=0
\\x=-12 \text{ or } x=9 \text{ or } x=7$.
Thus, the zeros of the function are -12, 9, and 7.