Answer:
9 + 27x²
Explanation:
Pre-Solving
We are given the following expression:
-9(-1-3x²)
We want to distribute -9 to both -1 and -3x².
To do this, we will multiply -9 to both -1 and -3x², then add them together.
Solving
First, multiply -1 and -3x² by -9.
-1 * -9 = 9
-3x² * -9 = 27x²
Now, add these two terms together.
9 + 27x²