Which property was used to simplify the expression?

Communicative property

Step-by-step explanation:

Well there is not multiplication and parenthesis so it’s not distributive

property.

Communicative property is the right answer because there is an equal sign meaning you have to move around the variables and numbers.

It can’t be associative property because there is not substitution.

And finally is not inverse property because no inverse multiplication is needed.

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation:

351.23

step-by-step explanation: