Find a Cubic Polynomial with Real Coefficients Having Roots X

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