SOLUTION: find all the values of x that are NOT in the domain of f. the function of f is defined below. f(x)=x-5/x^2 -4

Algebra ->  Linear-equations -> SOLUTION: find all the values of x that are NOT in the domain of f. the function of f is defined below. f(x)=x-5/x^2 -4      Log On


   



Question 878628: find all the values of x that are NOT in the domain of f.
the function of f is defined below.
f(x)=x-5/x^2 -4

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Values that make the denominator equal to zero are not in the domain since division by zero is undefined.
x%5E2-4=0
%28x%2B2%29%28x-2%29=0
Two solutions:
x%2B2=0
x=-2
and
x-2=0
x=2