Answer:
o
Step-by-step explanation:
Order of operations. Left-to-Right prevails
P = parenthesis first
E = exponentiation
MD multiplication/division leftmost has higher priority
AS addition/subtraction leftmost first
1st computation: (2 + 2) because of P ==> 3
2nd Computation: 3² = 9
3rd computation (1+2)² = 3² = 9
Answer 9 - 9 = 0
