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Paulette72
@Paulette72
April 2019
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Simplifier (non calculer) cette epression svp :
A= -2x²-6x-8+10x²+2x+3
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harutyunyanmel
A= -2X²+10X²-6X+2X-8+3=8X²-4X-5
1 votes
Thanks 1
Sdu61
(-2X²+10X²) + (-6X+2X) + (-8+3)
Sdu61
:)
paulette72
Aussi merci !
salimlove
A = -2X² - 6X - 8 + 10X² + 2X + 3
= 8X² - 4X - 5
2 votes
Thanks 1
Sdu61
il faut prendre la réponse de Harutyunyanmel et simplifier encore :)
Sdu61
on peut additionner les X² entre eux et les X entre eux, mais pas les X² avec des X :)
salimlove
-2X² et 10X² >>>> 10 + (-2) = 10 - 2 = 8
paulette72
comment?
salimlove
et on a : -6X et 2X : >> -6 + 2 = -4X
salimlove
et : -8 + 3 = -5
salimlove
tout simplement !!!!
Sdu61
voilà ;) en fait il faut prendre les X, les X² et les unités a part :)
paulette72
Ok j'ai comrpis merci Beaucoup !
salimlove
de rien !!!
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= 8X² - 4X - 5