Urgent svp, (7x-3)(4x-2)+(2x-3)(7x-3) = 0 AIdez Pls :s
Mathématiques
idiollefou
Question
Urgent svp, (7x-3)(4x-2)+(2x-3)(7x-3) = 0 AIdez Pls :s
1 Réponse
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1. Réponse winner123
bonsoir
(7x-3)(4x-2)+(2x-3)(7x-3) = 0
(7x-3)(4x-2 + 2x-3) =0
(7x-3)(6x -5) = 0
soit
7x -3 = 0
7x = 3 et x = 3/7
soit 6x -5 = 0
6x = 5
x = 5/6