Question

If f(x)=2^x-6 and g(x)=3x+9, find (f-g)(x)

Answer 1

(f-g)(x) = 2^x - 3x-15

Explanation:

f(x)=2^x-6

g(x)=3x+9

(f-g)(x) = 2^x -6 - (3x+9)

Distribute the minus sign

(f-g)(x) = 2^x -6 - 3x-9

Combine like terms

(f-g)(x) = 2^x - 3x-15