Show that the equation x3 - 15x + 1 = 0 has three solutions in the interval [-4, 4].

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 x3 - 15x + 1 = 0 has three solutions in the interval [-4, 4].

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