El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$\frac{e^{x + 4} x}{x - 2} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución analítica$$x_{1} = 0$$
Solución numérica$$x_{1} = -34.9550979627043$$
$$x_{2} = -72.8829518560966$$
$$x_{3} = -68.884542052103$$
$$x_{4} = -76.8816482523397$$
$$x_{5} = -58.7846631653682$$
$$x_{6} = -74.8822688144429$$
$$x_{7} = -78.8810827208943$$
$$x_{8} = -96.8776585229635$$
$$x_{9} = -102.876941964935$$
$$x_{10} = -82.8800921946729$$
$$x_{11} = -60.8889898607499$$
$$x_{12} = -40.9220331873374$$
$$x_{13} = -70.8837061433646$$
$$x_{14} = 0$$
$$x_{15} = -120.875454751818$$
$$x_{16} = -86.8792562546682$$
$$x_{17} = -98.8774031778961$$
$$x_{18} = -118.875583971589$$
$$x_{19} = -46.9057254985945$$
$$x_{20} = -108.876353897722$$
$$x_{21} = -62.8876760028954$$
$$x_{22} = -52.8963738751379$$
$$x_{23} = -44.9101105399726$$
$$x_{24} = -90.8785441695322$$
$$x_{25} = -58.8904789513601$$
$$x_{26} = -38.9303237279225$$
$$x_{27} = -66.8854719401314$$
$$x_{28} = -100.877164818532$$
$$x_{29} = -92.878227026582$$
$$x_{30} = -114.875865250021$$
$$x_{31} = -106.87653762709$$
$$x_{32} = -80.8805658563556$$
$$x_{33} = -94.8779325154731$$
$$x_{34} = -50.8989940497909$$
$$x_{35} = -84.8796570221994$$
$$x_{36} = -104.876733295522$$
$$x_{37} = -112.876018528967$$
$$x_{38} = -48.9020724101924$$
$$x_{39} = -64.8865106249317$$
$$x_{40} = -36.9409903044452$$
$$x_{41} = -32.9744261513989$$
$$x_{42} = -110.876181152119$$
$$x_{43} = -42.9154442833927$$
$$x_{44} = -88.8788863384542$$
$$x_{45} = -56.8921764385105$$
$$x_{46} = -54.8941238648963$$
$$x_{47} = -116.875720610646$$