April 2019 2 67 Report
Exercice 2
On considère l'expression D=(3 x -2)² - (3 x -2 )(3 + 5 x)
1-Développer et réduire D.

2-Factoriser D.

3-En utilisant la forme de D la mieux adaptée, calculer la valeur de D pour x=0 et x=2/3.
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