Question

I've been stuck for 30mins
HELP
If f(x) = 3x + 10x and g(x) = 2x – 4, find (f + g)(x)

Answer 1

(f+g)(x)=f(x)+g(x)=3ˣ+10x+2x-4=3ˣ+12x-4


C is answer

Answer 2

f(x) = 3ˣ + 10x and g(x) = 2x – 4, find (f + g)(x)

(f + g)(x)  = f(x) + g(x)

(3ˣ + 10x) + (2x -4)→→ 3ˣ + 12x -4, then:

(f + g)(x)  = f(x) + g(x) = 3ˣ + 12x -4 (answer C)