El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$\frac{2 \left(x - 1\right)^{2}}{x + 1} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución analítica$$x_{1} = 1$$
Solución numérica$$x_{1} = 1.00000097405139$$
$$x_{2} = 1.00000093928816$$
$$x_{3} = 1.00000094934919$$
$$x_{4} = 1.00000088485011$$
$$x_{5} = 1.00000087124481$$
$$x_{6} = 1.00000084514158$$
$$x_{7} = 1.00000095573785$$
$$x_{8} = 1.00000094267826$$
$$x_{9} = 1.00000093881218$$
$$x_{10} = 1.00000089079948$$
$$x_{11} = 1.00000086590835$$
$$x_{12} = 1.00000086872022$$
$$x_{13} = 1.00000089606091$$
$$x_{14} = 1.00000099205376$$
$$x_{15} = 1.00000089799898$$
$$x_{16} = 1.00000089159031$$
$$x_{17} = 1.00000083133699$$
$$x_{18} = 1.00000094646181$$
$$x_{19} = 1.00000089843149$$
$$x_{20} = 1.00000112577157$$
$$x_{21} = 1.00000085920151$$
$$x_{22} = 1.00000095425908$$
$$x_{23} = 1.00000089999048$$
$$x_{24} = 1.00000094481649$$
$$x_{25} = 1.00000089707442$$
$$x_{26} = 1.0000010874752$$
$$x_{27} = 1.00000093710485$$
$$x_{28} = 1.00000089371023$$
$$x_{29} = 1.00000094736301$$
$$x_{30} = 1.00000081109364$$
$$x_{31} = 1.0000008943436$$
$$x_{32} = 1.0000009440635$$
$$x_{33} = 1.00000079696371$$
$$x_{34} = 1.0000009776765$$
$$x_{35} = 1.00000100623697$$
$$x_{36} = 1.00000083883554$$
$$x_{37} = 1.00000077853586$$
$$x_{38} = 1.00000093835716$$
$$x_{39} = 1.00000095289224$$
$$x_{40} = 1.00000089657957$$
$$x_{41} = 1.00000088710143$$
$$x_{42} = 1.00000089884581$$
$$x_{43} = 1.00000087920159$$
$$x_{44} = 1.00000089924307$$
$$x_{45} = 1.00000095162509$$
$$x_{46} = 1.00000097084243$$
$$x_{47} = 1.00000088224669$$
$$x_{48} = 1.00000089233667$$
$$x_{49} = 1.00000095734289$$
$$x_{50} = 1.00000096100252$$
$$x_{51} = 1.00000094030907$$
$$x_{52} = 1.00000085051864$$
$$x_{53} = 1.00000098654723$$
$$x_{54} = 1.00000089962431$$
$$x_{55} = 1.00000098180432$$
$$x_{56} = 1.00000089494497$$
$$x_{57} = 1.0000009590911$$
$$x_{58} = 1.00000094143357$$
$$x_{59} = 1.0000009367212$$
$$x_{60} = 1.00000102715657$$
$$x_{61} = 1.00000094832346$$
$$x_{62} = 1.00000088078609$$
$$x_{63} = 1.00000089551669$$
$$x_{64} = 1.00000104184443$$
$$x_{65} = 1.00000096798186$$
$$x_{66} = 1.00000087352402$$
$$x_{67} = 1.00000088906757$$
$$x_{68} = 1.00000033353243$$
$$x_{69} = 1.00000089754707$$
$$x_{70} = 1.00000087559197$$
$$x_{71} = 1.00000056156515$$
$$x_{72} = 1.00000106110682$$
$$x_{73} = 1.00000094335187$$
$$x_{74} = 1.00000088359738$$
$$x_{75} = 1.00000094561454$$
$$x_{76} = 1.00000087747672$$
$$x_{77} = 1.00000093978659$$
$$x_{78} = 0.999999349767455$$
$$x_{79} = 1.00000088996011$$
$$x_{80} = 1.00000088811665$$
$$x_{81} = 1.0000010155866$$
$$x_{82} = 1.00000071750983$$
$$x_{83} = 1.00000088601516$$
$$x_{84} = 1.00000075349689$$
$$x_{85} = 1.0000006613782$$
$$x_{86} = 1.0000009504471$$
$$x_{87} = 1.00000093750468$$
$$x_{88} = 1.00000082227233$$
$$x_{89} = 1.00000094085741$$
$$x_{90} = 1.00000099852449$$
$$x_{91} = 1.00000085515792$$
$$x_{92} = 1.00000086275723$$
$$x_{93} = 1.00000096310113$$
$$x_{94} = 1.00000093792174$$
$$x_{95} = 1.00000089304223$$
$$x_{96} = 1.00000094203972$$
$$x_{97} = 1.00000096541585$$