SOLUTION: Can someone help me with this? Find all numbers for which the rational expression is undefined. (q^3-8q)/(q^2-16)

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Can someone help me with this? Find all numbers for which the rational expression is undefined. (q^3-8q)/(q^2-16)      Log On


   

Question 375788: Can someone help me with this?
Find all numbers for which the rational expression is undefined.
(q^3-8q)/(q^2-16)
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
%28q%5E3-8q%29%2F%28q%5E2-16%29=%28q%28q%5E2-8%29%29%2F%28%28q-4%29%28q%2B4%29%29
The expression is undefined when the denominator equals zero.
q-4=0
highlight%28q=4%29
.
.
.
q%2B4=0
highlight%28q=-4%29