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.

Question

asked Apr 19, 2021 144k views

1 Answer

Bers · Answer 1 · 2021-04-25T03:22:20+0000

Answer:

A

Explanation:

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.