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Evaaaa13
@Evaaaa13
May 2019
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Bonjour, j'ai besoin d'aide svp:
Développer, puis réduire: °2 = au carré
a) (√5+2) °2
b) (3-√2)°2
c) (1+√3) °2
d) (√3+√2)(√3-√2)
e) (2+√7)°2
f) (√3-√10)(√3-√6)
Merci d'avance
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MichaelS
Verified answer
Bonjour,
je te fais la a) et la d), tu fais les suivantes en faisant pareil :
Rappel :
(a+b)² = a²+2ab+b²
(a-b)² = a²-2ab+b²
(a+b)(a-b) = a²-b²
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Calculez les expressions: a) 1/3 + 5/9 b) 11/6 + -7/3 c) 17/24 - -5/6 a) 2/3+1/8 b) -2/5 + 3/4 c)-5/7 - 3/2 d) 4/7 - 4/5 e) 3- 5/7 f) -2 - 3/4
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Lista de comentários
Verified answer
Bonjour,je te fais la a) et la d), tu fais les suivantes en faisant pareil :
Rappel :
(a+b)² = a²+2ab+b²
(a-b)² = a²-2ab+b²
(a+b)(a-b) = a²-b²