103k views
5 votes
Find a degree 3 polynomial with real coefficients having zeros x = 3 and x = 1 − 2 i and a lead coefficient of 1. Write in expanded form.

User Yin Gang
by
7.2k points

1 Answer

1 vote

Explanation:

(x-3)(x-1 +2i)(x-1-2i) The imaginary roots always come in pairs : 1+- 2i

User James Alvarez
by
8.1k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories