Proof Without Words: a^2-b^2=(a+b)(a-b)

Authors

  • Krishnamurthy Bala Subramaniam Regional Institute of Education, Bhopal, India (Retired)
  • Aji Thomas Regional Institute of Education, Bhopal, India

Keywords:

Proof without Words, Proof and Argumentation,, Visual Reasoning

Abstract

This elegant visual argument invites students to reason spatially about algebra, revealing the identity.

References

Nelsen, Roger B. Proofs without Words: Exercises in Visual Thinking. Washington, D.C.: Mathematical Association of America, 1993.

Downloads

Published

2025-05-31

How to Cite

Subramaniam, K. B., & Thomas, A. (2025). Proof Without Words: a^2-b^2=(a+b)(a-b). hio ournal of chool athematics, 99(1), 5. etrieved from http://voyager.janeway.systems:9999/index.php/OJSM/article/view/10523

Issue

Vol. 99: Spring 2025

Section

Articles

License

By submitting this agreement, the author hereby grants to The Ohio State University, on behalf of its University Libraries