Question

For f(x) = 2x + 1 and g(x) = x2 – 7, find (f – g)(x).

Answer 1

its not true. Answer is (f + g)(x) = x2 + 2x - 6

Explanation:

Trust me. Good luck.

Answer 2

-x^2 +2x +8

Explanation:

f(x) = 2x + 1

g(x) = x^2 – 7,

(f – g)(x) = 2x +1 - ( x^2 -7)

Distribute the minus sign

= 2x+1 - x^2 +7

Combine like terms

= -x^2 +2x +8