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Sagot :

e=x puissance 11-9+5

Réponse:

E=9-x²+3x²-9x+7+5x³-7x³

E=16-9x+2x²-2x³

F=2x³+4-6x²+x²-2x+9x-3x-9x

F=4-5x-5x²+2x³

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