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Sagot :

THEO

Bonjour,

m(x) = 4(x - 2) - (x - 2)(3x + 1)

= 4 × x + 4 × (-2) - (x × 3x + x × 1 - 2 × 3x - 2 × 1)

= 4x - 8 - (3x² + x - 6x - 2)

= 4x - 8 - 3x² - x + 6x + 2

= -3x² + 4x - x + 6x - 8 + 2

= -3x² + 9x - 6

Bonne journée !

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