Question

What would be the answer to both?

Answer 1

f(- 3) = 51, g(2) = - 11

Explanation:

To evaluate f(- 3), substitute x = - 3 into f(x), that is

f(- 3) = - 2(- 3)³ - 3 = - 2(- 27) - 3 = 54 - 3 = 51

Similarly for g(2)

g(2) = - 5(2) - 1 = - 10 - 1 = - 11