January 2021 0 65 Report
Bonjour soit E= (x)= (x-3)²-(x-3) (x+3)
1) developper puis reduire E
2) factoriser E
3) choisir l expression permettant de faire un minimum de calculs et calculer E pour:
a) x racine 2 b) x=-1/3
on donnera la valeur exacte et une valeur arrondie au centieme pres
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