The general and correct rule in order of operations is PEMDAS which is parentheses, exponents, multiplication, division, addition then subtraction.
Given the expression 2 + (3 + 5)2 ÷ 4 ⋅(1/2)^4
P : 2 + (8)2 ÷ 4 ⋅(1/2)^4
E : 2 + (8)2 ÷ 4 ⋅ 0.0625
M: 2 + 16 ÷ 0.25
D: 2 + 64
A: 66
S: -
The final answer is then 66.