Math Chapter Wise Complex Number, De Moivre's Theorem And Nth Root Of Unity English MCQ (GIC) Lecturer 2015 Q.If 3+4i is a root of the equation x2 +px+q = 0, then Ap = 6, q = 25 Bp = 6, q = –15 Cp = –6, q = –7 Dp = –6, q = 25 Show answer Correct answer: p = –6, q = 25