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Il faut Factoriser
D=5x²-2x
E=8x+8
F=18x-16x²
Merci


Répondre :

cc

D=5x²-2x = x * 5x + x * (-2) = x(5x-2)

E=8x+8 = 8 * x + 8 * 1 = 8(x+1)

F=18x-16x² = 2x * 9 + 2x * (-8x) = 2x(9 - 8x)