GMAT Quantitative Reasoning Practice Test 2

The original equation is ${\mathit{X}}^3+10{\mathit{X}}^2+16\mathit{X}$, it can be written as $\mathit{X}\left(\mathit{X}+8\right)\left(\mathit{X}+2\right)$.
The roots are $\left(-8\right),0$ and $\left(-2\right)$.
We are looking for an equation that has one of the same roots.
Answer B: $\mathit{X}+8$
This equation has the root $\left(-8\right)$.
All the other answers have different roots than the original equation.