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MinatoNM
@MinatoNM
January 2021
1
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1(x + 11/2 - √( 2121/4 ) )( (x + 11/2 + √( 2121/4 )
1(x - 17.5)(x + 28.5)
Les solutions sont 17.5 ; -28.5
Comment fait t'on pour passer de 1(x - 17.5)(x + 28.5) au solution car il sont positif
Merci de me montrait comment vous faite petit a petite je c'est que c'est une histoire de parenthèse mais je vois pas comment en fait
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mohayati2006
1(x - 17.5)(x + 28.5)=0
(x - 17.5)(x + 28.5)=0
donc
x-17.5=0 ou x+28.5=0
x=17.5 ou x=-28.5
s=( 17.5 , -28.5)
1 votes
Thanks 2
MinatoNM
C'est la meme chose si a la place du coefficient directeur 1 il y a un 3 on l'oublie ??
mohayati2006
c est la meme chose pour 3 ou 1 .....
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Lista de comentários
1(x - 17.5)(x + 28.5)=0
(x - 17.5)(x + 28.5)=0
donc
x-17.5=0 ou x+28.5=0
x=17.5 ou x=-28.5
s=( 17.5 , -28.5)