SOLUTION: s^3-8s/s^2-64 Need all numbers for which expression is undefined.

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: s^3-8s/s^2-64 Need all numbers for which expression is undefined.      Log On


   

Question 281864: s^3-8s/s^2-64
Need all numbers for which expression is undefined.
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
%5Bs%5E3-8s%5D%2F%5Bs%5E2-64%5D
%5Bs%28s%5E2-8%29%5D%2F%5B%28s%2B8%29%28s-8%29%5D
.
It is undefined if the denominator is zero.
It is zero if
(s+8)=0
or
(s-8)=0
.
Therefore, it is undefined if
s = {-8, 8}