Answer:
-2; -1; 0.
Step-by-step explanation:
x(x+1)(x+2)=0;
[tex]\left[\begin{array}{ccc}x=0\\x+1=0\\x+2=0\end{array} \ = > \ \left[\begin{array}{ccc}x=0\\x=-1\\x=-2\end{array}.[/tex]