Question

If f(x)=3^x+10x and g(x)=2x-4, find (f-g)(x)A 15x-4B 3^x-8x+4C. 3^x+8x+4D 3^x+12x-4

Answer 1

Two functions must be evaluated

Then (f-g) (x) = f(x) - g(x)

3^x + 10x - [2x - 4] = 3^x + (10x- 2x) + 4

= 3^x + 8x + 4