SOLUTION: s^-1/4=81. what does s equal?

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: s^-1/4=81. what does s equal?      Log On


   



Question 70109: s^-1/4=81. what does s equal?
Answer by Edwin McCravy(20056) About Me  (Show Source):
You can put this solution on YOUR website!
s%5E%28-1%2F4%29=81. what does s equal?
Raise both sides to the reciprocal of -1%2F4 power,
that is, raise both sides to the -4 power
%28s%5E%28-1%2F4%29%29%5E%28-4%29=81%5E%28-4%29
Multiply exponents on the left, Simplfy the right side
s%5E1=1%2F81%5E4
s=1%2F43046721
Edwin