Answer:
fx) = 
Step-by-step explanation:
1. step:
solve the bracket
fx) = 3(
- 1) 2 + 5

2. step:
use the BEDMAS form.
fx) = 
fx) = 
Force = mass * acceleration
Force = 0.3 km * 8m = 2.4 N
I got a different answer from a,b,c
F(x) = -34
Okx) = 2x
Both are correct
Hope this helps