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

shirali, shailesh (2016) The difference-of-two-squares formula: A new look. At Right Angles, 5 (2). pp. 54-57.

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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
Uncontrolled Keywords: Algebra, identities, alternative proofs, number line, investigation, visualisation
Subjects: Natural Sciences > Mathematics
Divisions: Azim Premji University > University publications > At Right Angles
Depositing User: Mr. Sachin Tirlapur
Date Deposited: 24 Sep 2018 11:27
Last Modified: 24 Sep 2018 11:27
Publisher URL:

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