What do you mean by 2n?

Question

2+n?
2xn?

Answer 1

n is some number.
2n means 2 x n.
Example
Calculate 2n:-
a) when n = 6 and b) when n = 45
a) 2n = 2 x 6 = 12
b) 2n = 2 x 45 = 90

2 + n requires 2 and n to be added.
Example
calculate 2 + n:-
a) when n = 50 and b) when n = 8
a) 2 + n = 2 + 50 = 52
b) 2 + n = 2 + 8 = 10

2 x n is the same as 2n as explained above.
2n is a quicker method of denoting multiplication.
Example
2 x a x 3 x b x 5 c = 30 a b c

Answer 2

n means n
2n means n + n which is same as 2 x n
2n means 2xn.

Answer 3

2n means 2xn

Answer 4

2n is very different from 2+n. N is a variable. It means that itcan take any value unlike 2 which is a constant.

Answer 5

In algebra, 'n' usually refers to an integer, whereas 'x' usually refers to any real number. In complex math, 'z' usuall refers to a complex number.