Choose the correct simplification of the expression (2x − 6)(3x2 − 3x − 6).

Step-by-step explanation:

Multiply 2x-6 inside the second parenthesis

First multiply 2x inside second parenthesis'

Now we combine all the terms

Combine like terms

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:

x + 4/7

step-by-step explanation:

use cymath