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SPaCe10
@SPaCe10
April 2019
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Bonjour,
j'aurais besoin d'aide pour un devoir de maths ou il faut factoriser des expressions
A= 36-(-8x-4)²
B= (-10x+8)²-(x-1)(-10x+8)
C= (2x+3)(3x-9)+9x²-81
D=(-5x-3)+(x-2)(-5x-3)
E= -(-x+7)(-5x-3)-(-5x-3)(-8x+6)
Merci a ceux qui vont répondre.
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isapaul
Verified answer
A = 36 - (-8x-4)²
A = 6² - (-8x-4)²
A = (6 - 8x-4)(6 +8x+4)
A = (2-8x)(10+8x)
B = (-10+8)²-(x-1)(-10x+8)
B = (-10x+8)(-10x+8) -(x-1)(-10x+8)
B = (-10x+8)(-10x+8-x-1)
B = (-10x+8)(-11x+7)
C = (2x+3)(3x-9)+9x²-81
C = (2x+3)(3x-9) + (3x-9)(3x+9)
C = (3x-9)(2x+3+3x+9)
C = (3x-9)(5x+12)
D = (-5x-3)+(x-2)(-5x-3)
D = (-5x-3) ( 1+x-2)
D = (-5x-3)(x-1)
E = -(-x+7)(-5x-3)-(-5x-3)(-8x+6)
E = (-5x-3)(x-7+8x-6)
E = (-5x+3)(9x-13)
2 votes
Thanks 2
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sPaCe10
June 2021 | 0 Respostas
J'aimerai avoir de l'aide pour l'exercice 1 svp merci d'avance
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sPaCe10
June 2021 | 0 Respostas
Bonjour j'aurais besoin d'aide pour ce devoir merci d'avance
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SPaCe10
April 2019 | 0 Respostas
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SPaCe10
April 2019 | 0 Respostas
Bonsoir, est-ce que quelqu'un pourrais m'aider pour le 1 svp ? Je n'ai pas compris. Merci d'avance.
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SPaCe10
April 2019 | 0 Respostas
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Verified answer
A = 36 - (-8x-4)²A = 6² - (-8x-4)²
A = (6 - 8x-4)(6 +8x+4)
A = (2-8x)(10+8x)
B = (-10+8)²-(x-1)(-10x+8)
B = (-10x+8)(-10x+8) -(x-1)(-10x+8)
B = (-10x+8)(-10x+8-x-1)
B = (-10x+8)(-11x+7)
C = (2x+3)(3x-9)+9x²-81
C = (2x+3)(3x-9) + (3x-9)(3x+9)
C = (3x-9)(2x+3+3x+9)
C = (3x-9)(5x+12)
D = (-5x-3)+(x-2)(-5x-3)
D = (-5x-3) ( 1+x-2)
D = (-5x-3)(x-1)
E = -(-x+7)(-5x-3)-(-5x-3)(-8x+6)
E = (-5x-3)(x-7+8x-6)
E = (-5x+3)(9x-13)