Respuesta :

FulcrumAhsoka

Answer:

84

Step-by-step explanation:

Q: Avg val of f(x) = 2 ( x 2 1 ) x 2 = 42x (hopefully?)

(1/(3-1)) * [tex]\int\limits^3_1 {42x} \, dx[/tex]

1/2 * 168 = 84