Mathematics, 09.04.2021 14:00 asdfghj3513

Aidez moi à résoudre cette question, merci d'avance. 117 Utiliser une identité remarquable a. n désigne un nombre quelconque.
Développer et réduire l'expression (2n + 5)(2n - 5).
b. En utilisant la question a, calculer 205 x 195.
Conseil
205 = 200 + 5 et 195 = 200-5.Merci et bonne journée.

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More questions: Mathematics Another questions

Aidez moi à résoudre cette question, merci d'avance. 117 Utiliser une identité remarquable a. n désigne un nombre quelconque.Développer et réduire l'expression (2n + 5)(2n - 5).b. En utilisant la question a, calculer 205 x 195.Conseil205 = 200 + 5 et 195 = 200-5.Merci et bonne journée.​

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Another question on Mathematics

Aidez moi à résoudre cette question, merci d'avance. 117 Utiliser une identité remarquable a. n désigne un nombre quelconque.
Développer et réduire l'expression (2n + 5)(2n - 5).
b. En utilisant la question a, calculer 205 x 195.
Conseil
205 = 200 + 5 et 195 = 200-5.Merci et bonne journée.