Question

Find the value of x.

log 3 x=4

Answer 1

The correct answer option is D. 81.

Explanation:

We are given the following expression and we are to find the value of x:

`log _ 3 x = 4`

We can inverse
`log _ 3 x` and re-write it as
`3^x`.

Doing that, we will raise both the sides of the equation to the power of 3 to get:

`3 ^ { log 3 x } = 3 ^ 4`

x = 81