Question 674239
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Hi
finding the domain for 
{{{f(x)=1/(x^2-4x-5) = 1/((x+1)(x-5))}}}
When: (x+1)(x-5)= 0, x = -1  0r x = 5
domain is all real numbers except x = -1  and x = 5
Denominator cannot be ZERO