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Module 1: Binomial Expressions 3

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Difference of perfect squares rule

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Algebra - Difference of perfect squares rule

Difference of perfect squares rule

This expansion can now provide us with another rule when expanding
binomial factors of the form (_a_ +_ b_)(_a_ - _b._)

We call this rule the (DOPS) rule.

Sometimes this rule is referred to as DOTS (Difference of Two Squares),
however DOPS (Difference of Perfect Squares) is the preferred name.

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