完全平方式2 Flashcards by 林 Sir . | Brainscape

Q

(a + b)²

A

a² + 2ab + b²

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Q

(a - b)²

A

a² - 2ab + b²

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Q

(2x + 3)²

A

4x² + 12x + 9

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Q

(a + 5)²

A

a² + 10a + 25?

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Q

(2 + b)²

A

4 + 4b + b²

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Q

(x + 2y)²

A

x² + 4xy + 4y²

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Q

(3a - b)²

A

9a² - 6ab + b²

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Q

(5 - b)²

A

25 - 10b + b²

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Q

(x - 2y)²

A

x² - 4xy + 4y²

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Q

(2a + 3b)²

A

4a² + 12ab + 9b²

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Q

(4x - y)²

A

16x² - 8xy + y²

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Q

(6 - 5b)²

A

36 - 60b + 25b²

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