Question

How do you simplify `sqrt(81/x^4)`?

Answer 1

`=9/x^2`

Explanation:

`sqrt(81/x^4) = (sqrt(81))/(sqrt(x^4))`

We know that `sqrt(x^2)=x`. Which then mean that `sqrt(x^4)=x^2`.

What mulitiples twice to make `81`? Well that's `9`. So from that, we can say that `sqrt(81)=9`.

From there, we will have our answer.
`=9/x^2`

You can learn more about square roots and irrational numbers on this link from Socratic .