To expand the expression \(-56(9b - 12)\), you need to distribute \(-56\) to both terms inside the parentheses.
Here's how it's done:
\[ -56(9b) - 56(-12) \]
Now, calculate each term:
- \(-56 \times 9b = -504b\)
- \(-56 \times -12 = 672\)
Putting it all together, the expanded expression is:
\[ -504b + 672 \]
So, the final answer is:
\[ -504b + 672 \]