Question

If f(x) = 3x + 10x and g(x) = 5x - 3, find (f+ g)(x).
O A. 18x– 3
O B. 3x + 15x - 3
O c. 3x - 5x + 3
O D. 3x + 5x + 3

Answer 1

A. 18x - 3

Porque:

(f+g)(x)=?

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

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

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

(f+g)(x)= 18x - 3 ✔️