I need help...again :')

The answer is D.

Step-by-step explanation:

because if you do the methoes method you know that it rules out 1 and 2 after you do that its just between C and D, for the caunususicon it has to be D, that is why i think its D. hope this helps

kkkll

step-by-step explanation:

kljlklj

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: