Get expert advice and community support on IDNLearn.com. Join our knowledgeable community to find the answers you need for any topic or issue.
Answer:
since the polynomial has -5+√3i as a root , by the complex conjugate root theorem, it's conjugate must also be a root of polynomial. the conjugate of -5+√3i is -5-√3i.
therefore, the root -5-√3i must also be a root of the polynomial.