Answer:864
Step-by-step explanation:
Answer:
A
12x12 = 144 per side
144x6 sides = 864
9
Well 12 + 6 = 18 divided by 2 is 9
So 9 is your answer.
The expanded form: y=(2x-3)(x+3)
The simplified form: 2x^2+3x-9