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Ichevauche
@Ichevauche
May 2019
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Bonjour j'aurais besoin d'aide rapidement:
On considère l'expression A:
A = (x-2)²-(x-1)(x-4)
1) Développer puis réduire l'expression A
2) En déduire le calcul de 1234² - 1235 X 1232
Merci d'avance
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Verified answer
bonjour,
1) je te laisse faire, tu dois trouver =x
2) 1234²-1235*1232 = (x-2)²-(x-1)(x-4) = x
avec x = 1236
(1000-2)²-(1236-1)(1236-4) = x = 1236
1 votes
Thanks 1
trudelmichel
Verified answer
Bonjour,
A=(x-2)²-(x-1)(x-4)
A= (x²+4-4x)-(x²-x-4x+4)
A= x²+4-4x-x²+5x-4
A=x
1234²-1235x1232
(1236-2)²-(1236-1)(1236-4)=1236
2 votes
Thanks 1
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Verified answer
bonjour,1) je te laisse faire, tu dois trouver =x
2) 1234²-1235*1232 = (x-2)²-(x-1)(x-4) = x
avec x = 1236
(1000-2)²-(1236-1)(1236-4) = x = 1236
Verified answer
Bonjour,A=(x-2)²-(x-1)(x-4)
A= (x²+4-4x)-(x²-x-4x+4)
A= x²+4-4x-x²+5x-4
A=x
1234²-1235x1232
(1236-2)²-(1236-1)(1236-4)=1236