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Sagot :

KL7

Bonjour,

a) 16 X + 20 = 4 (4X + 5)

b) 3X^2 - 15 X = 3X (X - 5)

c) 3 (X +2) - 5 (X+2) = (X+2)(3-5) = -2 (X+2)

d) (X+3)^2 - (X+3) (2X-1) = (X+3)(X+3 - 2X +1) = (X+3)(-X+4) = - (X+3)(X-4)

Bonne journée.

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