domain of-1-1/(x^2-4) — step-by-step solution

Let's find the domain of

- 1 - \frac{1}{x^{2} - 4}

For the expression

- \frac{1}{x^{2} - 4}

to be defined, we must have:

x^{2} - 4 \neq 0

▶Domain of definition:

x \in ℝ \ {-2, 2}