Rodney is purchasing new window blinds for his home. Lowe's charges $6 per window blind and an additional $50 as an installation fee. Home Depot charges $9 per window blind with an additional $25 as an installation fee. Part 1: Which store would charge less for installing 7 window blinds? Justify your answer. Part 2: How much money is saved by using Home Depot instead of Lowe's to install 4 window blinds?

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: