Question

If f(x) = 3x - 1 and g(x) = x + 2, find (f- g)(x).

A. 3-2x
B. 4x+1
C. 2x-3
D. 2x-1

Answer 1

The answer is C.
You need to distribute the negative to g which would be 3x-1 -x-2 and then add like terms

Answer 2

If f(x)= 3x - 1 and g(x) = x+2, (f +g)(x) is 4x+1.