If f (x) = x² + x - 4, evaluate f (2i).

Can anyone show a step by step process to get the answer?

Question

Mathematics

Karla Anderson

7 December, 18:08

If f (x) = x² + x - 4, evaluate f (2i).

Can anyone show a step by step process to get the answer?

+5

Answers (1)

Know the Answer?

Cole · Answer 1

-6+2i

Step-by-step explanation:

f (2i) = 2i^2+2i-4

2i^2 is - 2 because i^2 is-1, times 2 is - 2.

Therefore, the equation becomes - 2+2i-4, leaving the answer of - 6+2i.

If f (x) = x² + x - 4, evaluate f (2i).Can anyone show a step by step process to get the answer?

If f (x) = x² + x - 4, evaluate f (2i).

Can anyone show a step by step process to get the answer?