Prove that 2^? +3^? is a multiple of 5 for all odd ?∈N.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.4: Fractional Expressions
Problem 69E
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Prove that 2^? +3^? is a multiple of 5 for all odd ?∈N.

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