Solve for the missing variable.

Question

4^x =2

Example:

3^2n+1 = 3^4
Cross out both the threes
2n+1 =4
Subtract 1
2n=3
n=3/2

Answer 1

1. 4^x = 2.
Take Log of both sides:
x*Log4 = Log2,
X = Log2/Log4 = 0.5.

Answer 2

1. Or 4^x = 2.
(2^2)^x = 2^1,
2x = 1, X = 0.5.