Answer:
(b) 14
Step-by-step explanation:
You want the difference of functions f(x) = 3x² +1 and g(x) = 1 -x when x=2.
The notation (f -g)(x) means f(x) -g(x). Then (f -g)(2) is ...
f(2) -g(2) = (3·2² +1) -(1 -2) = 13 -(-1) = 14
The value of (f -g)(2) is 14.