Deux equations merci beaucoup -3x/2=-2 et -5x/3+2=5

By: USER7334
28 Agustus 2025 mathematiques 5 minutes
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Question

Grade: Education Subject: mathematiques
Deux equations merci beaucoup -3x/2=-2 et -5x/3+2=5
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Best Answer
(233)
Bonsoir,

- 3x/2 = - 2
x = (2 * 2) / 3
x = 4/3

- 5x/2 + 2 = 5
- 5x/2 + 4/2 = 10/2
- 5x + 4 = 10
- 5x = 10 - 4
- 5x = 6
x = - 6/5
x = - 1,2
Answered on 28 Agustus 2025
(92)
-3x/2=-2-3x=-4
x=4/3

 -5x/3+2=5-5x/3=5-2
-5x/3=3
-5x=9
x=-9/5
Answered on 28 Agustus 2025

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Bonjour,
Je n'arrive pas à faire cet exercice, et il est pour demain pouvez vous m'aider!

On considère l'expression D= (2x+3)² - (x-4)²
1) developper et réduire D
2) Calculer D pour x=√3.( On donnera la valeur exacte du resultat sous la forme a+b√3, avec a e b entiers
3) Ecrire D sous la forme d'un produit de deux facteurs

Merci d'avance !!!

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