by Yixun Shi (Bloomsburg University)
This article originally appeared in:
College Mathematics Journal
November, 2010
Subject classification(s):
Numbers and Computation | Number Concepts | Natural NumbersApplicable Course(s):
1.3 High School Elementary Algebra | 4.10 Math for High School TeachersThe author characterizes the positive integers that are the products of two pairs of factors such that the sum of one pair equals the difference of the other.
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