Bonsoir aidez moi svp. 5x(4x-12)-(2x-7)(4x-12) = 0 Merci d'avance
Mathématiques
leodomenech3
Question
Bonsoir aidez moi svp.
5x(4x-12)-(2x-7)(4x-12) = 0
Merci d'avance
1 Réponse
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1. Réponse Anonyme
5x(4x-12)-(2x-7)(4x-12) = 0
(4x-12)(5x-(2x-7)) = 0
4x - 12 = 0
4x = 12
x = 12/4
x = 3
(5x - (2x - 7)) = 0
5x - 2x + 7 = 0
3x = -7
x = - 7/3
S= {- 7/3 ; 3}