Question

if 3 to the power x = 81, find the value of 2x​

Answer 1

Answer:

The correct answer is 16

Step-by-step explanation:

According to question:
$3^{x} = 81$
$3^{x} = 3^{4}$ [convert the base to a power of 3]
Bases are equal, but exponents must be equal.
∴ x = 4
Value of $2^{x}$ = $2^{4}$ = 16
∴ The value of $2^{x}$ is 16

Hope this helps!