Visual Proof! Polynomial Expansion is like solving a Jigsaw Puzzle?!

This video describes the visual proof of formulas (a+b)(a+b) and (a-b)(a-b). Watch to discover how the areas of squares and rectangle combine like solving a jigsaw puzzle to conclude the formulas.
Correction : At 7:01 ; please note the correct formula expansion for (a-b)(a-b) = a^2 -2ab + b^2.
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Edited By: Gopika Nair