Question

−2x^3 − 2x^2 − 4x − 2 for x = −2. 

A 14
B 16
C -2
D -18​

Answer 1

A

Explanation:

Substitute x = - 2 into the expression and evaluate, that is

- 2(- 2)³ - 2(- 2)² - 4(- 2) - 2

= (- 2 × - 8) - (2 × 4) + 8 - 2

= 16 - 8 + 8 - 2

= 14 → A