x^2 (4 - x); when x = 2

Answer 1

2^2 (4 - 2)
4^(4-2)
4^2
= 8

Answer 2

Your steps are not correct, 4^2 ≠ 8
should have been
= 4(2)
= 8

You got the right answer, but if I were to mark your work
I would deduct marks.