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Làm ơn hãy giúp tôi
(a+b)²
(a-b)²

Sagot :

dollyjoseph

Answer:

[tex](a + b) ^{2} = {a}^{2} + 2ab + {b}^{2} \\ (a - b) ^{2} = {a {}^{2} - 2ab + {b}}^{2} [/tex]

Step-by-step explanation:

hopethe answer helped you :)

Answer:

(a+b)² = a²+2ab+b²

(a-b)² = a²-2ab+b²

Step-by-step explanation:

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