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gul2012
@gul2012
January 2021
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si on ajoute 7 à un nombre entier naturel n, le carré du nombre obtenue dépasse le carré n de 357. Calculer n.
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ficanas06
Verified answer
On a l'équation:
n²+357 = (n+7)²
n²+357 = n²+14n+49
357-49 = n²-n²+14n
14n= 308
n = 308/14
n = 22
le nombre est 22
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Verified answer
On a l'équation:n²+357 = (n+7)²
n²+357 = n²+14n+49
357-49 = n²-n²+14n
14n= 308
n = 308/14
n = 22
le nombre est 22