I need help for this homework

Solution
1a. (D)
1b. (C)
1c. (A)
1d. (B)
2. f’(x) = (x-2)(x+2) = x2 - 4
f(x) = x3/3 – 4x
3. (c)
4. (b)
5. (d)
6. (c)
7. (b)
8. (b)
9a. (b)
9b. (a)
10. (b)
11. (b)
12. (b)
13. (d)
14. MISSING
15a. f(x) = 3x3-2x2+3x + constant
15b. f(x) = 4x – 5lnx – 2/x + constant
15c. f(x) = 3ex + constant
16. s’’(t) =...