Locating Zeros of Polynomial Function

Question 4 • IASD Precalculus 2nd Quarter - Wingerter 2025-26

What are the solutions to the equation x2 + 4x + 5 = 0?

Answer

x = −4 + 2i or x = −4 − 2i

x = 1 or x = 4

x = −2 + i or x = 2 − i

x = −2 + i or x = −2 − i

Using the quadratic formula, x = (−4 ± √(4² − 4·1·5))/2 = (−4 ± √(−4))/2 = −2 ± i. Therefore, the solutions are x = −2 + i and x = −2 − i, choice D.

AI-written and checked against the verified answer.

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