Question

What to the power of $4$ equals $81$?

Answer 1

Find the number whose power of $4$ equals $81$

Power: A power of a number gives how many times the number is used in a multiplication.

Let the required number be $x$.

$x^4=81$

$\Rightarrow$ $x^4=3\times 3\times 3\times 3$

$\Rightarrow$ $x^4=3^4$

$\Rightarrow$ $x=3$

Hence, $3$ raised to the power of $4$ is equal to $81$.