Respuesta :

Panoyin
f(x) = 3x + 9
g(x) = 5x²

(f + g)(x) = (3x + 9) + 5x²
(f + g)(x) = 3x + 9 + 5x²
(f + g)(x) = 5x² + 3x + 9
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Answer:

[tex]5x^2 + 3x +9[/tex]

Step-by-step explanation:

[tex]f(x) = 3x + 9\\g(x) = 5x^2[/tex]

[tex](f+g)(x)\\f(x) + g(x)[/tex]

[tex]3x+9 + 5x^2[/tex]

[tex]5x^2 + 3x +9[/tex]

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