Respuesta :

Dead3ill

Answer:

[tex] {x}^{3} + 3 {x}^{2} + 3x + 2[/tex]

Step-by-step explanation:

[tex](x + 2)( {x}^{2} + x + 1)[/tex]

[tex] = x( {x}^{2} + x + 1) + 2( {x}^{2} + x + 1)[/tex]

[tex] = {x}^{3} + {x}^{2} + x + 2 {x}^{2} + 2x + 2[/tex]

[tex] = {x}^{3} + 3 {x}^{2} + 3x + 2[/tex]

Shakurr

Answer:

x= 2

x= 1-√-3/2

x = 1+√-3/2

Step-by-step explanation:

(x+2)(x²+x+1) =(x³+x²+x+2x²+2x+2)

(x³+3x²+3x+2)