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Mamoushka11
@Mamoushka11
May 2019
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Bonjour pourriez vous m'aider pour mon exercice de maths,je dois le rendre lundi matin.Développer puis simplifier les expressions suivante.A=(a+3)(a+4)
B=(y-5)(y+1)
C=(x-2)(x-7)
Merci d'avance à vous tous pour vos réponses.
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winner123
Verified answer
Bonsoir
a = a² +4 a + 3 a +12 = a² + 7 a + 12
b = y² + y - 5 y - 5 = y² - 4 y - 5
c = x² - 7 x - 2 x + 14 = x² - 9 x + 14
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gsantha
Verified answer
Bonsoir voilà la réponse
A = (a+3)(a+4)
= a*a+a*4+3*a+3*4
= a²+4a+3a+12
= a²+7a+12
B = (y-5)(y+1)
= y*y+y*1-5*y-5*1
= y²+y-5y-5
= y²-4y-5
C = (x-2)(x-7)
= x*x+x*(-7)-2*x-2*(-7)
= x²-7x-2x+14
= x²-9x+14
Voilà j'espèrea voir pu t'aider ^^
1 votes
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Mamoushka11
May 2019 | 0 Respostas
Bonsoir c'est urgent c'est pour demain : Comment dit-on "de rien "en espagnol, je vous remercie d'avance pour votre aide.
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May 2019 | 0 Respostas
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Lista de comentários
Verified answer
Bonsoira = a² +4 a + 3 a +12 = a² + 7 a + 12
b = y² + y - 5 y - 5 = y² - 4 y - 5
c = x² - 7 x - 2 x + 14 = x² - 9 x + 14
Verified answer
Bonsoir voilà la réponseA = (a+3)(a+4)
= a*a+a*4+3*a+3*4
= a²+4a+3a+12
= a²+7a+12
B = (y-5)(y+1)
= y*y+y*1-5*y-5*1
= y²+y-5y-5
= y²-4y-5
C = (x-2)(x-7)
= x*x+x*(-7)-2*x-2*(-7)
= x²-7x-2x+14
= x²-9x+14
Voilà j'espèrea voir pu t'aider ^^