Question

If f(x)=5x-2 and g(x)=2x+1 , find (f-g)(x)

Answer 1

$f(x)=5x-2\\\\g(x)=2x+1\\\\(f-g)(x)=(5x-2)-(2x+1)=5x-2-2x-1=3x-3$


Answer: B. 3x - 3

Answer 2

Answer:

The correct option is B.

Step-by-step explanation:

The given functions are

$f(x)=5x-2$

$g(x)=2x+1$

We have to ind the value of (f-g)(x).

$(f-g)(x)=f(x)-g(x)$

$(f-g)(x)=5x-2-(2x+1)$

$(f-g)(x)=5x-2-2x-1$

Combine like terms.

$(f-g)(x)=(5x-2x)-2-1$

$(f-g)(x)=3x-3$

Therefore option B is correct.