svp c'est pour demain et je n'y arrive pas aidez moi svpp!!!!!!:,((
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BatJokExo 1 : a) . n . n+2 . 2(n+2) b) n+(n+2)+2(n+2) = n+n+2+2n+4 = 4n+6 c) Si n=7 7+(7+2)+2(7+2) = 7+9+2x7+2x2 = 7+9+14+4 = 34 d) 6 car si on remplace, 6+(6+2)+2(6+2)=30
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. n+2
. 2(n+2)
b) n+(n+2)+2(n+2)
= n+n+2+2n+4
= 4n+6
c) Si n=7
7+(7+2)+2(7+2)
= 7+9+2x7+2x2
= 7+9+14+4
= 34
d) 6 car si on remplace, 6+(6+2)+2(6+2)=30