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Derive the Square of a Difference by Substitution

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Exploring Algebraic Identities · Perfect-square factorisation · 3:19

You'll learn: Replace b with −b in the square-of-a-sum identity.

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Derive the Square of a Difference by Substitution

3:19

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Derive the Square of a Difference by Substitution

You'll learn: Replace b with −b in the square-of-a-sum identity.

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Same topic

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Read a Perfect Square Backwards
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Take Out a Common Factor Before Looking for a Square
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Square Three Terms by Grouping Two of Them
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Square Three Terms by Grouping Two of Them
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Efficient numerical calculations

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Multiply Numbers Equally Spaced Around a Convenient Centre
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You'll learn: Compare two-term and three-term decompositions for a given square or product.

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Algebra tiles and quadratic factors

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Multiply Two Linear Expressions with Algebra Tiles
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Multiply Two Linear Expressions with Algebra Tiles
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