Indica si los valores dados son raíces o no del polinomio ?

Para verificar si unos valores son raices de un polinomio solo debemos evaluar los puntos y verificar que el resultado sea 0

a) x = - 1

<img src="https://tex.z-dn.net/?f=x%5E%7B3%7D%20-x%5E%7B2%7D%20-4x%2B4" />

<img src="https://tex.z-dn.net/?f=%28-1%29%5E%7B3%7D%20-%28-1%29%5E%7B2%7D%20-4%28-1%29%2B4" />

<img src="https://tex.z-dn.net/?f=-1-1%2B4%2B4" /> = 6 no es raíz

b) x = 1

<img src="https://tex.z-dn.net/?f=%281%29%5E%7B3%7D%20-%281%29%5E%7B2%7D%20-4%281%29%2B4" />

<img src="https://tex.z-dn.net/?f=1-1-4%2B4" /> = 0 si es raiz

c) x = 2

<img src="https://tex.z-dn.net/?f=%282%29%5E%7B3%7D%20-%282%29%5E%7B2%7D%20-4%282%29%2B4" />

<img src="https://tex.z-dn.net/?f=8-4-8%2B4" /> = 0 si es raíz.

D) x = - 2

<img src="https://tex.z-dn.net/?f=%28-2%29%5E%7B3%7D%20-%28-2%29%5E%7B2%7D%20-4%28-2%29%2B4" />

<img src="https://tex.z-dn.net/?f=-8-4%2B8%2B4" /> = 0 si es raíz

e) x = - 4

<img src="https://tex.z-dn.net/?f=%28-4%29%5E%7B3%7D%20-%28-4%29%5E%7B2%7D%20-4%28-4%29%2B4" />

[img = 10]

[img = 11] = - 60 No es raiz

f) [img = 12]

[img = 13] = 36 no es raiz.