Respuesta :

Answer:

[tex](f+g)(x)=3x^2+15x-3[/tex]

Step-by-step explanation:

[tex]f(x) = 3x^2+10x\\g(x) = 5x-3[/tex]

Adding both

[tex](f+g)(x) = 3x^2+10x+5x-3[/tex]

[tex](f+g)(x)=3x^2+15x-3[/tex]

Answer:

3x^2 +15x -3

Step-by-step explanation:

(f +g)(x)= f(x) + g (x)

(f +g)(x)= 3x^2 + 10x + 5x -3

= 3x^2 +15x -3