The area of a square can be found using the equation A = s², where A is the area and s is the measure of one side of the square. Match the equation for how to solve for the side length of a square to its description.

Drag the equation into the box to match the description.

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[ A square has an area of 99 in² ][ - ]

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A.) s=/99in

B.) s=(99)^2in

C.) s=99in

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: