To expand the expression \(-4(6a - 5)\), apply the distributive property:
\[ -4 \times 6a + (-4) \times (-5) \]
Calculating each term:
\[ -4 \times 6a = -24a \]
\[ -4 \times -5 = 20 \]
Now, combine these results:
\[ -24a + 20 \]
So, the expanded form of \(-4(6a - 5)\) is:
\[ -24a + 20 \]