Answer:
(- ∞, - 1 ) u (- 1, ∞ )
Explanation:
the denominator of f(x) cannot be zero as this would make f(x) undefined.
equating the denominator to zero and solving gives the value that x cannot be.
6x + 6 = 0 ( subtract 6 from both sides )
6x = - 6 ( divide both sides by 6 )
x = - 1 ← excluded value
domain (- ∞, - 1 ) u (- 1, ∞ )