The difference-of-two-squares formula : a new look

Community Mathematics Centre, CoMaC (2016) The difference-of-two-squares formula : a new look. At Right Angles, 5 (2). pp. 54-57. ISSN 2582-1873

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The difference-of-two-squares formula a 2 − b 2 = ( a − b )( a + b ) is so basic that it would seem a difficult task to say anything new about it! But Agnipratim Nag of Frank Anthony Public School, Bangalore (Class 8) has done just this. In this short note we describe his interesting and innovative approach to prove the identity. It has particular relevance for those who teach at the middle school level.

Item Type: Articles in APF Magazines
Authors: Community Mathematics Centre, CoMaC
Document Language:
Uncontrolled Keywords: Algebra, identities, alternative proofs, number line, investigation, visualisation
Subjects: Natural Sciences > Mathematics
Divisions: Azim Premji University > University Publications > At Right Angles
Full Text Status: Public
Publisher URL:

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