Question

If f(x)=3^x + 10x and g(x)= 2x - 4 find (f-g)(x)

A: 3^x + 12x -4
B: 15x - 4
C: 3^x - 8x+4
D:3^x + 8x+4

Answer 1

D. 3^x + 8x + 4

Explanation:

Subtract 2x - 4 from 3^x + 10x.

3^x + (10x - 2x) - (-4)

3^x + 8x + 4