Question

Find the value of x. log 2 x = 3 A. 5 B. 6 C. 8 D. 9

Answer 1

The answer is c I believe

Answer 2

Answer: Option C

$x =8$

Step-by-step explanation:

To solve this problem use the properties of the logarithms.

We know that the inverse function of $y = log_2 (x)$ is $y = 2 ^ x$.

So when composing the function with its inverse function we have to:

$2 ^ {log_2 (x)} = x$.

Now apply this property on both sides of the equation

$log_2(x) = 3\\\\2^{log_2(x)}=2^3\\\\x = 2^3\\\\x = 8$

the answer is the option C