aleeSayamelrainebu aleeSayamelrainebu

13-12-2016
Mathematics

contestada

If f(x) = x3 – 2x2, which expression is equivalent to f(i)?
–2 + i

–2 – i

2 + i

2 – I

Respuesta :

Nirina7 Nirina7

21-12-2016

the answer is
f(x) = x3 – 2x2
so f(i)=i^3 - 2i²
i²=-1
i^3=ixi²=-i
f(i)=i^3 - 2i²=-i-2x-1=-i+2
the answer is a. f(i)= –2 + i

Answer Link

Madisonismad Madisonismad

12-03-2019

Answer:

It's D

2-i

Step-by-step explanation:

Answer Link

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