1. **State the problem:** Expand the expression $4(n + 3)$.
2. **Formula used:** Use the distributive property of multiplication over addition:
$$a(b + c) = ab + ac$$
3. **Apply the formula:** Multiply 4 by each term inside the parentheses:
$$4 \times n + 4 \times 3$$
4. **Simplify:**
$$4n + 12$$
5. **Final answer:** The expanded form of $4(n + 3)$ is $4n + 12$.
Expand Expression 19983A
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