OpenStax, Precalculus 2e §3.1 Complex Numbers · Exercise 5 · Complex Numbers · Arithmetic of ℂ

Complex Numbers · Exercise 5

Evaluate the algebraic expressions.

$If f (x) = x^{2} + x - 4,$ evaluate $f (2 i) .$

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OpenStax, Precalculus 2e · §3.1 Complex Numbers · Exercise 5

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