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The Maximum and Minimum of Two Numbers Using the Quadratic Formula

by Dan Kalman (Augustana College)

This article originally appeared in:
College Mathematics Journal
September, 1984

Subject classification(s): Algebra and Number Theory | Algebra
Applicable Course(s): 2.1 College Algebra

A derivation of the formulas \(\max(r,s)=\frac{1}{2}(r+s+|r-s|)\) and \(\min(r,s)=\frac{1}{2}2(r+s-|r-s|)\)

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