El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$\left(\sqrt{x + 1}\right)^{3} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución analítica$$x_{1} = -1$$
Solución numérica$$x_{1} = -0.999999999731257$$
$$x_{2} = -0.999999992223143$$
$$x_{3} = -0.999999995806415$$
$$x_{4} = -1.00000000706806$$
$$x_{5} = -0.999999994953254$$
$$x_{6} = -0.999999997512745$$
$$x_{7} = -1.00000000075459$$
$$x_{8} = -0.999999998536559$$
$$x_{9} = -0.999999995294518$$
$$x_{10} = -1.00000000536174$$
$$x_{11} = -0.999999993246934$$
$$x_{12} = -0.999999993076302$$
$$x_{13} = -0.99999999921914$$
$$x_{14} = -1.00000000246099$$
$$x_{15} = -0.999999991369984$$
$$x_{16} = -0.999999993929461$$
$$x_{17} = -0.99999999290567$$
$$x_{18} = -0.999999998707199$$
$$x_{19} = -0.999999991540616$$
$$x_{20} = -1.00000000399668$$
$$x_{21} = -0.999999999902504$$
$$x_{22} = -0.999999994441357$$
$$x_{23} = -0.999999991711247$$
$$x_{24} = -1.00000000416732$$
$$x_{25} = -1.00000000365542$$
$$x_{26} = -0.999999998877841$$
$$x_{27} = -0.999999994270725$$
$$x_{28} = -1.0000000062149$$
$$x_{29} = -0.999999999048487$$
$$x_{30} = -1.00000000826248$$
$$x_{31} = -0.999999996659578$$
$$x_{32} = -1.00000000263162$$
$$x_{33} = -0.999999997171477$$
$$x_{34} = -1.00000000553237$$
$$x_{35} = -0.999999996318312$$
$$x_{36} = -0.999999994100093$$
$$x_{37} = -1.00000000041323$$
$$x_{38} = -0.999999998024649$$
$$x_{39} = -1.00000000604427$$
$$x_{40} = -0.999999994782621$$
$$x_{41} = -0.999999993588197$$
$$x_{42} = -1.00000000348479$$
$$x_{43} = -0.999999997000844$$
$$x_{44} = -0.999999999389804$$
$$x_{45} = -1.00000000280225$$
$$x_{46} = -1.00000000655617$$
$$x_{47} = -1.00000000024245$$
$$x_{48} = -1.00000000843312$$
$$x_{49} = -1.00000000570301$$
$$x_{50} = -1.00000000297289$$
$$x_{51} = -0.999999998365921$$
$$x_{52} = -1.00000000433795$$
$$x_{53} = -0.999999992564406$$
$$x_{54} = -1.00000000194908$$
$$x_{55} = -1.00000000723869$$
$$x_{56} = -1.00000000484985$$
$$x_{57} = -1.0000000067268$$
$$x_{58} = -0.999999997683379$$
$$x_{59} = -0.99999999614768$$
$$x_{60} = -1.00000000587364$$
$$x_{61} = -1.00000000109589$$
$$x_{62} = -0.999999994611989$$
$$x_{63} = -0.999999997854014$$
$$x_{64} = -1.00000000638553$$
$$x_{65} = -1.00000000143717$$
$$x_{66} = -1.00000000689743$$
$$x_{67} = -0.999999997342111$$
$$x_{68} = -1.00000000519111$$
$$x_{69} = -1.00000000314352$$
$$x_{70} = -1.00000000126653$$
$$x_{71} = -1.00000000007101$$
$$x_{72} = -0.999999995635782$$
$$x_{73} = -1.00000000809185$$
$$x_{74} = -0.99999999546515$$
$$x_{75} = -1.00000000757996$$
$$x_{76} = -0.999999992735038$$
$$x_{77} = -1.00000000467921$$
$$x_{78} = -1.00000000092524$$
$$x_{79} = -0.999999998195285$$
$$x_{80} = -1.00000000058392$$
$$x_{81} = -1.00000000502048$$
$$x_{82} = -0.999999992052511$$
$$x_{83} = -1.00000000792122$$
$$x_{84} = -1.00000000740933$$
$$x_{85} = -0.999999993417566$$
$$x_{86} = -1.00000000229035$$
$$x_{87} = -0.999999996830211$$
$$x_{88} = -1.00000000160781$$
$$x_{89} = -1.00000000450858$$
$$x_{90} = -0.999999995977047$$
$$x_{91} = -1.00000000382605$$
$$x_{92} = -0.999999996488945$$
$$x_{93} = -1.00000000211972$$
$$x_{94} = -0.999999993758829$$
$$x_{95} = -1.00000000177845$$
$$x_{96} = -1.00000000331415$$
$$x_{97} = -0.999999992393775$$
$$x_{98} = -1.00000000775059$$
$$x_{99} = -0.999999999560493$$
$$x_{100} = -0.999999995123886$$
$$x_{101} = -0.999999991881879$$