Respuesta :

ddsimmo
should be the answer
         l
         l
        v
(x+1)(x2+2)
To factor by grouping, you have to divide the problem into two groups:
x^3+x^2+x+1
(x^3+x^2)+(x+1)
Factor each group individually
(x^3+x^2)+(x+1)
x^2(x+1)+(x+1)
(x^2+1)(x+1)

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