Mathematics
Mathematics, 12.02.2021 19:20, maciemarklin3032

Soit x un nombre ratinnel. On donne: D=(2x-5)×(-3x+3)-20x+4x²+25 1) Développer et réduire D
2)Factoriser D
3)Calculer D pour x= -1/2​

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Soit x un nombre ratinnel. On donne: D=(2x-5)×(-3x+3)-20x+4x²+25 1) Développer et réduire D
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