Help svp !!!
je n arrrive pa cet exercice :
E= (3x+1)²-4  
calculer E si x = 4/3
merci d avance

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Grade: Education Subject: mathematiques
Help svp !!!
je n arrrive pa cet exercice :
E= (3x+1)²-4  
calculer E si x = 4/3
merci d avance
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Answer (128)

Best Answer
(142)
E= (3x+1)²-4 
=9x²+6x+1-4
=9x²+6x-3

si x=4/3
9(4/3)²+6(4/3)-3
=9*16/9+24/3-3
=16+8-3
=21