Letf(x) be a polynomial with integral coefficients. Iff(1) and f(2) both are odd integers, prove that f(x) = 0 can't have any integral root.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.1: Polynomial Functions Of Degree Greater Than
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Let f(x) be a polynomial with integral coefficients. Iff(1) and
f(2) both are odd integers, prove that f(x) = 0 can't have any
integral root.
Transcribed Image Text:Let f(x) be a polynomial with integral coefficients. Iff(1) and f(2) both are odd integers, prove that f(x) = 0 can't have any integral root.
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