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Sagot :

Bonjour

Factoriser :

A = 4(x – 3) + x (x - 3)

A = (x - 3) (x + 4)

C = 2x(x + 1) - 4(x + 1)

C = (2x - 4) (x + 1)

C = 2 (x - 2) (x + 1)

B = x² - 4 x

B = x (x - 4)

D=5 x² + x

D = x (5x + 1).

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