Select the correct answer. what is the solution of y − 4x = 0 and 3x + 6y = 9? a. `x= 0`, `y= (3)/(2)` b. `x= (1)/(3)`, `y= (4)/(3)` c. `x = 1`, `y = -1` d. `x= (1)/(4)`, `y= (2)/(3)`

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:

d

step-by-step explanation: