Question: Which of the following values of $x$ satisfy the equation $$(x - m)(x + n) = 0$$?
1. **State the problem:** We need to find the values of $x$ that satisfy the equation $$(x - m)(x + n) = 0$$.
2. **Recall the zero product property:** If the product of two factors is zero, then at least one of the factors must be zero. That is, if $$A \cdot B = 0$$, then either $$A = 0$$ or $$B = 0$$.
3. **Apply the zero product property to the equation:**
\begin{align*}
(x - m)(x + n) &= 0 \\
\Rightarrow x - m &= 0 \quad \text{or} \quad x + n = 0
\end{align*}
4. **Solve each equation for $x$:**
\begin{align*}
x - m &= 0 \implies x = m \\
x + n &= 0 \implies x = -n
\end{align*}
5. **Conclusion:** The values of $x$ that satisfy the equation are $$x = m$$ and $$x = -n$$.
6. **Match with the options given:** Option B: $m$ and $-n$.
**Final answer:** Option B.