The answer is the one you put that and it says its correct
The correct answer is the fourth one
Answer:

Step-by-step explanation:
Recall the formula:

We apply this formula to simplify 
This implies that:



This simplifies to


-2a+4 because you have to distribute
Answer:
I am not sure but still according to me, its 3×5. 3X5 can be the correct answer.