2x+4-4×2x+12x+2÷2=?
A
4
B
2
C
6
D
8
Correct Answer: 4
2x + 4 - 4×2x + 12x + 2÷2 = 2x.24 - 4×2x.212x.22÷2 = 16.2x - 8.2x4.2x2 = 8.2x2.22 = 4