Tomamos como el límite
$$\lim_{x \to -1^+}\left(\frac{x^{2} - x}{2 x^{3} + \left(- x^{2} + \left(x + 2\right)\right)}\right)$$
cambiamos
$$\lim_{x \to -1^+}\left(\frac{x^{2} - x}{2 x^{3} + \left(- x^{2} + \left(x + 2\right)\right)}\right)$$
=
$$\lim_{x \to -1^+}\left(\frac{x \left(x - 1\right)}{2 x^{3} - x^{2} + x + 2}\right)$$
=
$$\lim_{x \to -1^+}\left(\frac{x \left(x - 1\right)}{2 x^{3} - x^{2} + x + 2}\right) = $$
$$- \frac{-1 - 1}{2 \left(-1\right)^{3} - 1 - \left(-1\right)^{2} + 2} = $$
= -1
Entonces la respuesta definitiva es:
$$\lim_{x \to -1^+}\left(\frac{x^{2} - x}{2 x^{3} + \left(- x^{2} + \left(x + 2\right)\right)}\right) = -1$$