Baby Identities Flashcards by Noodle Brain | Brainscape

Q

(a + b)²

A

a² + 2ab + b²
(a-b)² + 4ab

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Q

(a - b)²

A

a² - 2ab + b²
(a + b)² - 4ab

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Q

a² - b²

A

(a - b) (a + b)

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Q

a⁴ - b⁴

A

(a² - b²) ( a² + b²)

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Q

(a + b)³

A

a³ + b³ + 3ab (a + b)
a³ + b³ + 3a²b + 3ab²

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Q

(a - b)³

A

a³ - b³ - 3ab (a - b)
a³ - b³ - 3a²b + 3ab²

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Q

a³ - b³

A

(a - b) (a² + b² + ab)

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