Answer
$y=0$ and $y=9$ and $y=-4$.
Work Step by Step
The given equation is
$\Rightarrow 2y(y-9)(y+4)=0$
Use zero-product property rule.
$\Rightarrow 2y=0$ or $y-9=0$ or $y+4=0$
Solve for $y$.
$\Rightarrow y=0$ or $y=9$ or $y=-4$
Hence, the solutions are $y=0$ and $y=9$ and $y=-4$.