Bonjour,
(4x-1)(x-2) = 4x(x-2) -1(x-2) = 4x×x + 4x×(-2) -1×x -1×(-2)
= 4x² - 8x - x +2
= 4x² - 9x + 2
N'hésite pas si tu as des questions :)
Réponse:
(4x-1)×(x-2)= 4x²-8x-x+2
(4x-1)×(x-2)= 4x²-9x+2
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Bonjour,
(4x-1)(x-2) = 4x(x-2) -1(x-2) = 4x×x + 4x×(-2) -1×x -1×(-2)
= 4x² - 8x - x +2
= 4x² - 9x + 2
N'hésite pas si tu as des questions :)
Réponse:
(4x-1)×(x-2)= 4x²-8x-x+2
(4x-1)×(x-2)= 4x²-9x+2