GCSE Maths Practice: functions

Question 4 of 10

This question practices evaluating cubic functions f(x) = 2x³ - x² + 4x at x = 2.

\( \text{Find the value of } f(2) \text{ for the function } f(x) = 2x^3 - x^2 + 4x. \)

Choose one option:

Check powers, multiplication, and addition carefully.

Substitute x = 2 and compute each term carefully.