(a+b)² (a_b)² (a+b)(a_b)
Mathématiques
najixa
Question
(a+b)²
(a_b)²
(a+b)(a_b)
(a_b)²
(a+b)(a_b)
2 Réponse
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1. Réponse MichaelS
(a + b)² = a² + 2ab + b²
(a - b)² = a² - 2ab + b²
(a + b)(a - b) = a² - b² -
2. Réponse Anonyme
(a+b)²=a²+2ab+b²
(a+b)³=a³+3a²b+3ab²+b³
(a-b)²=a²-2ab+b²
(a-b)³=a³-3a²b+3ab²-b³
a²-b²=(a-b)(a+b)
a³-b³=(a-b)(a²+ab+b²)