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

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

–2 + i
–2 – i
2 + i
2 – i

asked
User Nakhli
by
7.7k points

1 Answer

4 votes

Answer:

D

Explanation:

f(x)=x³-2x²

f(i)=(i)³-2(i)²=i²×i-2(-1)

=-1×i+2

=2-i

answered
User Prakash K
by
8.2k points
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