Evaluate ((-1)^2+(-1)-12)/((-1)^2-4)

$\frac{{(- 1)}^{2} + (- 1) - 12}{{(- 1)}^{2} - 4}$

Simplify the numerator.

Raise $- 1$ to the power of $2$ .

$\frac{1 - 1 - 12}{{(- 1)}^{2} - 4}$

Subtract $1$ from $1$ .

$\frac{0 - 12}{{(- 1)}^{2} - 4}$

Subtract $12$ from $0$ .

$\frac{- 12}{{(- 1)}^{2} - 4}$

Simplify the denominator.

Raise $- 1$ to the power of $2$ .

$\frac{- 12}{1 - 4}$

Subtract $4$ from $1$ .

$\frac{- 12}{- 3}$

Divide $- 12$ by $- 3$ .

$4$