Respuesta :

sanchez9457

Answer:

(f+g)(x)

Step-by-step explanation:

(f+g)(x)=

[tex] {x}^{2} - 2x + 6x + 4 = {x}^{2} + 4x + 4[/tex]

[tex](x + 2)(x + 2) = 0[/tex]

[tex](x + 2) = 0 \\ x = - 2[/tex]

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