Question

If f(x) = x^3 – 2x^2, which expression is equivalent to f(i)?

Answer 1

Answer:

2 - i

Step-by-step explanation:

If  i  in the expression  f(i)  is an imaginary number, then

f(i) =  i^3  -  2 i^2  =  -i  - 2*(-1)  =  2 - i