Développer et réduire les expressions suivantes : A = (3-4x)(x*-4x+1) x*= x au carré B = 3/4m(4/5-2m/3) a/b= fraction m= x C = (x+1)(x-2)(x+3)

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Grade: Education Subject: mathematiques

Développer et réduire les expressions suivantes :
A = (3-4x)(x*-4x+1) x*= x au carré

B = 3/4m(4/5-2m/3) a/b= fraction m= x

C = (x+1)(x-2)(x+3)

Asked by: USER4971

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Answer (219)

USER8469

Best Answer

(345)

Bonsoir

♧ Développer et réduire les expressions :

A = (3 - 4x)(x²- 4x + 1)
A = 3x² - 12x + 3 - 4x³ + 16x² - 4x
A = - 4x³ + 19x² - 16x + 3

B = (3/4)m(4/5 - 2m/3)
B = (3/4) × 4/5 + (3/4)m × (2/3)m
B = - m²/2 + 3m/5

C = (x+1)(x-2)(x+3)
C = x³ + 2x² - 5x - 6

Voilà ^^

Answered on 28 Agustus 2025

USER9775

(357)

Bonsoir,

A = (3-4x)(x^2 - 4x+1)
A = 3x^2 - 12x + 3 - 4x^3 + 16x^2 - 4x
A = -4x^3 + 19x^2 - 16x + 3

B = 3/4m(4/5-2m/3) a/b= fraction m= x ?
B = 3m/5 - m^2/2

C = (x+1)(x-2)(x+3)
C = (x^2 - 2x + x - 2)(x + 3)
C = (x^2 - x - 2)(x + 3)
C = x^3 + 3x^2 - x^2 - 3x - 2x - 6
C = x^3 + 2x^2 - 5x - 6

Answered on 28 Agustus 2025

Le mathématicien David Hilbert a dit d'un de ses anciens élèves devenu poète: "Il n'avait pas assez d'imagination pourêtre mathématiciens". Qu'en pensez vous?

28 Agustus 2025 160 views 165 comments

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1 September 2025 160 views 256 comments

Développer et réduire les expressions suivantes : A = (3-4x)(x*-4x+1) x*= x au carré B = 3/4m(4/5-2m/3) a/b= fraction m= x C = (x+1)(x-2)(x+3)

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Développer et réduire les expressions suivantes :
A = (3-4x)(x-4x+1) x= x au carré

B = 3/4m(4/5-2m/3) a/b= fraction m= x

C = (x+1)(x-2)(x+3)

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