Quadratic Formula Visually! @MathVisualProofs

Uploaded February 2025 | Updated September 2026, 2 weeks ago

This is a short, animated visual proof showing how to use a visual proof for ``completing the square" in order to make sense of the quadratic formula. So this gives us a visual proof for the quadratic formula, which helps us find the solutions to quadratic equations.

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See related videos at:
youtube.com/shorts/bEtdKgbomSo
youtu.be/T0HyWIFbsHQ

This animation is based on a visual proof due to Charles D. Gallant from the March 1983 issue of Mathematics Magazine: jstor.org/stable/2690382 (page 110)

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