2^2-4
A 12
B 0
C 4
D 2
To evaluate the expression 2^2 - 4, follow the order of operations (PEMDAS/BODMAS):
1. Start with the exponent: 2^2 = 4.
2. Next, subtract 4 from the result: 4 - 4 = 0.
Therefore, the value of 2^2 - 4 is 0.
The correct answer is B) 0.