El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$\left(x + 1\right) + \log{\left(x \right)} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución analítica$$x_{1} = W\left(e^{-1}\right)$$
Solución numérica$$x_{1} = 0.278464542761074$$
$$x_{2} = 0.278464542761055$$
$$x_{3} = 0.27846454276106$$
$$x_{4} = 0.278464542761031$$
$$x_{5} = 0.278464542761048$$
$$x_{6} = 0.278464542761073$$
$$x_{7} = 0.278464542761074$$
$$x_{8} = 0.278464542761073$$
$$x_{9} = 0.278464542761074$$
$$x_{10} = 0.278464542761069$$
$$x_{11} = 0.278464542761071$$
$$x_{12} = 0.27846454276104$$
$$x_{13} = 0.278464542761072$$
$$x_{14} = 0.278464542761067$$
$$x_{15} = 0.278464542761073$$
$$x_{16} = 0.278464542761064$$
$$x_{17} = 0.278464542761074$$