bonjour
5 x ( 8 - 2 x ) = 0
soit 5 x = 0 et x = 0
soit - 2 x + 8 = 0 ⇔ - 2 x = - 8 ⇔ x = 4
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bonjour
5 x ( 8 - 2 x ) = 0
soit 5 x = 0 et x = 0
soit - 2 x + 8 = 0 ⇔ - 2 x = - 8 ⇔ x = 4