To expand the expression \(-5(3n + 3)\) using the distributive property, you multiply \(-5\) by each term inside the parentheses.
Here's the step-by-step expansion:
\[ -5(3n) + -5(3) \]
Calculating each term gives:
\[ -15n - 15 \]
Thus, the expanded form of \(-5(3n + 3)\) is:
\[ -15n - 15 \]