El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$\left(\sqrt{x + 4}\right)^{3} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución analítica$$x_{1} = -4$$
Solución numérica$$x_{1} = -3.99999999469731$$
$$x_{2} = -3.9999999957211$$
$$x_{3} = -4.00000000186377$$
$$x_{4} = -4.00000000152249$$
$$x_{5} = -3.99999999845124$$
$$x_{6} = -4.00000000322884$$
$$x_{7} = -4.00000000817717$$
$$x_{8} = -3.99999999128467$$
$$x_{9} = -3.99999999418541$$
$$x_{10} = -3.99999999367351$$
$$x_{11} = -3.99999999589173$$
$$x_{12} = -4.00000000715338$$
$$x_{13} = -4$$
$$x_{14} = -3.9999999982806$$
$$x_{15} = -3.99999999810997$$
$$x_{16} = -3.99999999230846$$
$$x_{17} = -3.99999999964586$$
$$x_{18} = -4.00000000732401$$
$$x_{19} = -3.999999996233$$
$$x_{20} = -4.00000000578832$$
$$x_{21} = -4.00000000237567$$
$$x_{22} = -3.99999999640363$$
$$x_{23} = -4.00000000493516$$
$$x_{24} = -4.00000000647085$$
$$x_{25} = -3.99999999111404$$
$$x_{26} = -3.99999999930447$$
$$x_{27} = -4.00000000544706$$
$$x_{28} = -3.99999999913381$$
$$x_{29} = -4.0000000030582$$
$$x_{30} = -3.99999999247909$$
$$x_{31} = -4.00000000032786$$
$$x_{32} = -4.00000000681211$$
$$x_{33} = -4.0000000045939$$
$$x_{34} = -4.000000004082$$
$$x_{35} = -4.00000000612959$$
$$x_{36} = -3.99999999435604$$
$$x_{37} = -3.99999999282035$$
$$x_{38} = -4.00000000442327$$
$$x_{39} = -4.00000000800654$$
$$x_{40} = -4.00000000766527$$
$$x_{41} = -3.99999999759806$$
$$x_{42} = -4.00000000049858$$
$$x_{43} = -4.00000000083992$$
$$x_{44} = -4.00000000510579$$
$$x_{45} = -3.99999999742743$$
$$x_{46} = -4.00000000169313$$
$$x_{47} = -4.00000000476453$$
$$x_{48} = -4.00000000374074$$
$$x_{49} = -3.99999999708616$$
$$x_{50} = -3.9999999977687$$
$$x_{51} = -3.99999999947514$$
$$x_{52} = -4.00000000339947$$
$$x_{53} = -3.99999999486794$$
$$x_{54} = -4.00000000783591$$
$$x_{55} = -4.00000000630022$$
$$x_{56} = -4.00000000220504$$
$$x_{57} = -3.99999999179656$$
$$x_{58} = -4.0000000025463$$
$$x_{59} = -4.00000000527643$$
$$x_{60} = -3.99999999264972$$
$$x_{61} = -4.00000000561769$$
$$x_{62} = -3.99999999350288$$
$$x_{63} = -3.99999999862188$$
$$x_{64} = -3.99999999299099$$
$$x_{65} = -3.99999999162593$$
$$x_{66} = -4.00000000101057$$
$$x_{67} = -3.99999999333225$$
$$x_{68} = -3.99999999384415$$
$$x_{69} = -3.99999999606236$$
$$x_{70} = -4.00000000749464$$
$$x_{71} = -3.99999999537983$$
$$x_{72} = -3.9999999952092$$
$$x_{73} = -3.99999999555047$$
$$x_{74} = -3.99999999401478$$
$$x_{75} = -4.00000000391137$$
$$x_{76} = -4.00000000135185$$
$$x_{77} = -4.0000000035701$$
$$x_{78} = -3.99999999452667$$
$$x_{79} = -4.00000000288757$$
$$x_{80} = -3.99999999196719$$
$$x_{81} = -3.99999999725679$$
$$x_{82} = -3.99999999674489$$
$$x_{83} = -3.99999999691553$$
$$x_{84} = -4.00000000698275$$
$$x_{85} = -4.00000000066926$$
$$x_{86} = -3.99999999896316$$
$$x_{87} = -4.00000000271694$$
$$x_{88} = -3.9999999914553$$
$$x_{89} = -4.00000000664148$$
$$x_{90} = -3.99999999213783$$
$$x_{91} = -4.00000000425263$$
$$x_{92} = -4.00000000118121$$
$$x_{93} = -3.99999999657426$$
$$x_{94} = -3.99999999981673$$
$$x_{95} = -4.0000000020344$$
$$x_{96} = -3.99999999879252$$
$$x_{97} = -4.00000000015694$$
$$x_{98} = -3.99999999503857$$
$$x_{99} = -3.99999999793933$$
$$x_{100} = -3.99999999316162$$
$$x_{101} = -4.00000000595896$$