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Eunice225
@Eunice225
May 2019
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Factorise cette expression C= 4a (3b-1/2) - 3a (b-1)
Exercice 2
a et b sont des nombres entiers différents de 0 tels que a>b.
1) Démontre que a² = (a-b)(a+b) + b²
2) Calcule rapidement 996² et 988²
SVP aider moi je suis en troisième
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magicchacha
Bonjour,
Exercice 1
C = 4a(3b-1/2)-3a(b-1)
C = a(1+9b)
Exercice 2
1)
a² = (a-b)(a+b) + b²
a² = a² -b² +b²
a² = a²
2)
996² = 992016
988² = 976144
1 votes
Thanks 1
eunice225
SVP détaillez la factorisation
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Exercice 1
C = 4a(3b-1/2)-3a(b-1)
C = a(1+9b)
Exercice 2
1)
a² = (a-b)(a+b) + b²
a² = a² -b² +b²
a² = a²
2)
996² = 992016
988² = 976144