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loulou37110
@loulou37110
January 2021
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Help c'est pour l'exercice 3 je n'y arrive pas ?? Svp 20points a gagné !!! Aller svp
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calinizou
Verified answer
Bonsoir
1/ a(2x+4)(5x-6) avec 5
(2*5+4)(5*5-6)=
(10+4)(25+6)=
14*19=266
2/ développer réduire
(2x+4)(5x-6)=
10x²-12x+20x-24=
10x²+8x-24
3/tu peux vérifier 10*5²+8*5-24=
250+40-24
290-24=
266 comme au 1
0 votes
Thanks 1
loulou37110
Merci et à tu une idée pour l'exercice 4 les question 2 et 3 ??
calinizou
non désolé
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Verified answer
Bonsoir1/ a(2x+4)(5x-6) avec 5
(2*5+4)(5*5-6)=
(10+4)(25+6)=
14*19=266
2/ développer réduire
(2x+4)(5x-6)=
10x²-12x+20x-24=
10x²+8x-24
3/tu peux vérifier 10*5²+8*5-24=
250+40-24
290-24=
266 comme au 1