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Batman27
@Batman27
May 2019
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Bonjour
qui peut m'aider à résoudre cette équation :
(x+6)²-x² = 84
merci beaucoup
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trudelmichel
Verified answer
Bonjour,
(x+6)²-x²=84
(x+6+x)(x+6-x)=84
(2x+6)(6)=84
2x+6=84/6
2x+6=14
2x=14-6
2x=8
x=4
0 votes
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rosiemuller2000
Verified answer
Coucou
(x+6)²-x² = 84
x²+12x+36 -x² = 84
12x +36 = 84
12x = 48
x= 48/12
x= 4
voila j espere t avoir aider
1 votes
Thanks 0
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Bonjour , qui peut m'aider merci beaucoup
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Lista de comentários
Verified answer
Bonjour,(x+6)²-x²=84
(x+6+x)(x+6-x)=84
(2x+6)(6)=84
2x+6=84/6
2x+6=14
2x=14-6
2x=8
x=4
Verified answer
Coucou(x+6)²-x² = 84
x²+12x+36 -x² = 84
12x +36 = 84
12x = 48
x= 48/12
x= 4
voila j espere t avoir aider