U have to add If u want to know the sum
Your answer is -8. I did it out of order. My apology.
The answer is correct because it would have to go like this;
(-4x + 9)² = (-4x + 9)(-4x + 9)
hope this helps, God bless!
Answer:
Step-by-step explanation:
You can simply count the number of unit cubes.
There are 11 cubic units.