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Sagot :

Bonjour,

H = a(a + 2)

= a² + 2a

J = 2x (3x - 4)

= 6x² -8x

Réponse:

Bjr,

H= a(a+2)

H= a²+2a

J= 2x(3x-4)

J= 6x²-8x

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