## Algebra 1

$0$
Note that $0^{n}=0$ , where $n$ is any non negative integer other than $0$ The given expression : $4xy^{2}0^{4}(-y)^{-3}=0$ X $4xy^{2}(-y)^{-3}=0$ (Since anything multiplied by 0 is 0) Final result : $0$