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Chapitre 2 - Polynômes Exercice 5, 7 p 48/49. Exercice 7 p 103. Exercice 9 et 10 p 49. Page 15. A= (6x+2)(3-5x)-5x(2x+7). =18x-30x²+6-10x-10x²-35x=-40x²-27x+6 pour x= 2. A=-40x2²-27x2 
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