Lesson 4️⃣ Difference Of Two Squares (D.O.T.S) Flashcards by Taliah B | Brainscape

Q

(a + 3) (a - 3)

A

a ² - 3a - 9
a ² + 0 - 9
= a ² - 9

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Q

(2a + 5) (2a - 5)

A

4a ² - 10a + 10a - 25
4a ² -25

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Q

(a-2b) (a + 2b)

A

a ² + 2ab - 2ab - 4b ²
a ² - 4b ²

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