GCSE Maths Practice: functions

Question 6 of 10

This question practices evaluating quadratic functions f(x) = x² - 2x.

\( \text{Find the value of } f(5) \text{ for the function } f(x) = x^2 - 2x. \)

Choose one option:

Check each arithmetic step to avoid errors.

Substitute x = 5 and perform the square and multiplication carefully.