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Morrigane
@Morrigane
April 2019
2
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Trouver tous les nombres x tels que:
x²= 49
x²= 1
x²= √9
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zivet
Verified answer
X²=49
x²-49=0
soit x=√49=7 ou x=-√49=-7
x²=1
la mémé chose
donc x=1 ou bien x=-1
x²=√9 donc
x²-√9=0
donc x=√√9 =√3 ou x=-√√9=-√3
0 votes
Thanks 1
winner123
Bonsoir
x² = 49
x = √49 = 7 ou - 7
x² = 1
x = √1 = 1 ou - 1
x² = √9
x = 3 ou - 3
1 votes
Thanks 1
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Lista de comentários
Verified answer
X²=49x²-49=0
soit x=√49=7 ou x=-√49=-7
x²=1
la mémé chose
donc x=1 ou bien x=-1
x²=√9 donc
x²-√9=0
donc x=√√9 =√3 ou x=-√√9=-√3
x² = 49
x = √49 = 7 ou - 7
x² = 1
x = √1 = 1 ou - 1
x² = √9
x = 3 ou - 3