Find a Cubic Polynomial with Real Coefficients Having Roots X

question 81

Multiple Choice

Find a cubic polynomial with real coefficients having roots x = -2 and x = 1 + 4i. Assume a lead coefficient of 1.

• A) P(x) = x³ + 13x + 34
• B) P(x) = x³ + 13x - 34
• C) P(x) = x³ + 4x² + 21x + 34
• D) P(x) = x³ - 4x² + 21x - 34

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