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

1 Answer
May 7, 2018

=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 .