2. margo sold 3 times as many pears as apple
she sold 3,456 apples and pears. how many
sell?

864 apples, 2595 pears

Step-by-step explanation:

x = apples

3x = pears

x + 3x = 3456

4x = 3456

x = 864

3x = 3 * 864 = 2592

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: