Well it depends on how long, wide and high the cords of wood is
(3x - 2)²
= (3x - 2) (3x - 2) use distributive property or FOIL
= 3x(3x) + 3x(-2) - 2(3x) - 2(-2)
= 9x² - 6x - 6x + 4 combine like terms
= 9x² - 12x + 4
Answer:
Option D is correct.

Step-by-step explanation:
Power of product property:
Let the equation: 
Using power of products Property on given equation:
= 
Therefore, the only option D of an equation which shows the correct use of power of Products property is, 
I think this question is for you to answer it with your own opinion, think about it and just answer it with what you think :)