Làm ơn hãy giúp tôi (a+b)² (a-b)²

asked Apr 1, 2022 66.3k views

5 votes

Làm ơn hãy giúp tôi
(a+b)²
(a-b)²

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1 vote

Answer:

(a+b)² = a²+2ab+b²

(a-b)² = a²-2ab+b²

Explanation:

Yakuhzi answered Apr 3, 2022

5.5k points

6 votes

Answer:

$(a + b) ^(2) = {a}^(2) + 2ab + {b}^(2) \\ (a - b) ^(2) = {a {}^(2) - 2ab + {b}}^(2)$

Explanation:

hopethe answer helped you :)

Astrochun answered Apr 7, 2022

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