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Sagot :

Bonsoir,
1. A = (4x-3)(carré) = 4x(carré) - 24x + 9
B = (6x+1)(carré) + 3x(x-5) = 36x(carre) + 12x + 1 + 3x(carré) -15x = 39x(carré) -3x + 1

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