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benhamouyael03
@benhamouyael03
October 2020
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j aurais besoin d aide piur cet exercice de maths svp merciiiii
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anaisevaristo
A) 3(a-1)=0
3a-3=0
3a=3
3a/3=3/3
a=1
b) a^2=0
a=0
c) a^2-3^2=0
a^2-9=0
a^2=9
a=-3 ou a=3
d) (x-3)^2=0
x-3=0
x=3
e) -3a=0
-3a/-3=0/-3
a=0
f) (a+3)(a-3)=0
a^2-9=0
a^2=9
a=-3 ou a=3
g) a(3a-1)=0
a=0 ou 3a-1=0
a=0 ou 3a=1
a=0 ou 3a/3=1/3
a=0 ou a=1/3
h) a^2=3
a= - racine carré de 3
ou
a= racine carré de 3
i) 3(a+1^2)=0
3(a+1)/3=0/3
a+1^2=0
a+1=0
a=-1
j) a/3=8/3
a=8
k) a/3=0
a/3x3=0x3
a=0
l) a/3=-4
a/3x3=-4x3
a=-12
Voilà je pense que c’est ça.
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benhamouyael03
il faut que trouver un nombre qui vérifie l'égalité
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Lista de comentários
3a-3=0
3a=3
3a/3=3/3
a=1
b) a^2=0
a=0
c) a^2-3^2=0
a^2-9=0
a^2=9
a=-3 ou a=3
d) (x-3)^2=0
x-3=0
x=3
e) -3a=0
-3a/-3=0/-3
a=0
f) (a+3)(a-3)=0
a^2-9=0
a^2=9
a=-3 ou a=3
g) a(3a-1)=0
a=0 ou 3a-1=0
a=0 ou 3a=1
a=0 ou 3a/3=1/3
a=0 ou a=1/3
h) a^2=3
a= - racine carré de 3
ou
a= racine carré de 3
i) 3(a+1^2)=0
3(a+1)/3=0/3
a+1^2=0
a+1=0
a=-1
j) a/3=8/3
a=8
k) a/3=0
a/3x3=0x3
a=0
l) a/3=-4
a/3x3=-4x3
a=-12
Voilà je pense que c’est ça.