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Sagot :

SULKY
Bonjour, 

M = (2x + 5)(3x - 2)
M = 6x² - 4x + 15x - 10
M = 6x² + 11x - 10
(2x + 5)(3x - 2) = 2x * 3x + 2x * -2 + 5 * 3x + 5 * -2 = 6x² - 4x + 15x - 10 = 6x² + 11x - 10

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