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Simple Expansions

Expanding a Square

(a + b)² = (a + b)(a + b) = a² + 2ab + b²

(a − b)² = (a − b)(a − b) = a² − 2ab + b²

Example 3.

Expand the given expression, clicking on the equal signs to see the next step:

Exercise 3.

Expand the following expression, writing your answer in its simplest form. Be careful of notation and do not use spaces in your answer.

<< Expanding a Pair of Brackets | Expansion Index | Expanding Polynomial Factors >>