Which one is true for the mathematical expression 2n+2n-12n+1÷2?
A
32
B
23
C
1
D
230
Correct Answer: 32
2n + 2n - 12n + 1 = 2n + 2n.2 - 12n + 1 - 1 = 2n(1 + 12)2n = 1 + 12 = 2 + 12 = 32