Question

Hi to whoever is reading this. I really need help on breaking down the expression. I am doing this without a calculator and I don’t Know what steps to take to get the answer.

Answer 1

Answer:

A

Step-by-step explanation:

$81$ is $9^2$ which happens to be $(3^2)^2$ or $3^4$.

So $\sqrt[4]{81} =3$

this eliminates options C and D

It can't be option B as both b and c aren't 4th rooted.