A Rational Root Theorem For Complex Roots

Authors

Sharon Barrs, Georgia Southern UniversityFollow
James P. Braselton, Georgia Southern UniversityFollow
Lorraine Braselton, Georgia Southern UniversityFollow

Document Type

Article

Publication Date

11-2003

Publication Title

The College Mathematics Journal

ISSN

1931-1346

Abstract

Using this nice extension of the rational root theorem, you can see almost at a glance that the only possible rational complex roots of x⁴ + 2x³ + 8x² + 6x + 15 = 0 are ± 1 ± 2i and ± 2 ± i .

Recommended Citation

Barrs, Sharon, James P. Braselton, Lorraine Braselton. 2003. "A Rational Root Theorem For Complex Roots." The College Mathematics Journal, 34 (5): 380-382.
https://digitalcommons.georgiasouthern.edu/math-sci-facpubs/428