Answer is :
Step-by-step Step-by-step explanation:
Here,
f(x) = 2x + 1
g(x) = x² - 7
We have to find (f - g) (x)
(f - g) (x) is similar to f(x) - g(x)
Further solving for f(x) - g(x)
Put value of f(x) and g(x) here
2x + 1 - x² - 7
2x - x² - 6
-x² + 2x - 6
Similarly, (f - g) (x) = -x² + 2x - 6 (Answer)