SOLUTION: The function h is defined below. h(x)= {{{(x^2-9x+20)/(x^2-1)}}} Find all values of that are NOT in the domain of h. If there is more than one value, separate them with co

Algebra ->  Functions -> SOLUTION: The function h is defined below. h(x)= {{{(x^2-9x+20)/(x^2-1)}}} Find all values of that are NOT in the domain of h. If there is more than one value, separate them with co      Log On


   

Question 859082: The function h is defined below.
h(x)= %28x%5E2-9x%2B20%29%2F%28x%5E2-1%29
Find all values of that are NOT in the domain of h.
If there is more than one value, separate them with commas.

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Any value that makes the denominator equal to zero is not allowed in the domain since division by zero is undefined.
x%5E2-1=0
%28x-1%29%28x%2B1%29=0
Two solutions:
x-1=0
x=1
and
x%2B1=0
x=-1