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Alice2828
@Alice2828
April 2019
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Bonjour j'espère que vous m'aiderez pour cette exercice s'il vous plaît cette une distributivité double :
D=(-2x-1)(-7x+3)
E=(-3x-7)(-5x+5)
F=(2x-8)(3x-3)
Merci d'avance ^_^
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Lucie109
D= -2x×(-7)-2x×3-1×(-7)-1×3
= 14x-6x+7-3
= 8x+4
E= -3x×(-5)-3x×5x-7×(-5x)-7×5
= 15x-15x+35x-35x
= 0
F= 2x×3x+2x×(-3)-8×3x-8×(-3)
= 6x(au carré)-6x-24x+24
= 6x(au carré)-30x+24
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alice2828
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Aidez moi svp c'est pour trois equations merci d'avance 1) 5x > -2 2)7x < -3 3)42 < 6x
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Bonjour vous pouvez m'aider c'est important merci .
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Bonsoir!!!!!! SVP aidez moi c'est urgent merci pour ceux qui m'aideront
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= 14x-6x+7-3
= 8x+4
E= -3x×(-5)-3x×5x-7×(-5x)-7×5
= 15x-15x+35x-35x
= 0
F= 2x×3x+2x×(-3)-8×3x-8×(-3)
= 6x(au carré)-6x-24x+24
= 6x(au carré)-30x+24