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Sagot :

Bonjour,

A = - 3 (x + 7)

A = - 3x - 21

B = 4 (2x - 3)

B = 8x - 12

C = - 11 (- x - 5)

C = 11x + 55

D = x (2x + 9)

D = 2x² + 9x

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