Show that the equation has exactly one real root. 1+2x+x^3+4x^5=0

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.4: Complex And Rational Zeros Of Polynomials
Problem 14E
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Show that the equation has exactly one real root. 1+2x+x^3+4x^5=0

 

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