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Choupettelila
@Choupettelila
May 2019
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Bonjour ,
J’aurai besoin d’aide pour cet exercice de math et si possible avoir une explication !!
Merci d’avance
PS c’est l’exercice 23
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maudmarine
Verified answer
Bonjour,
a- 2/3x + 5/4x = 8/12x + 15/12x = 23/12x
b. 2/3x * 5/4x = 10/12x = 5/6x
c. 2/3x - 5/4x = 6/12x - 15/12x = - 9/12x = - 3/4x
d. 2/3x² + 5/4x --> Impossible (on ne peut pas ajouter des x et des x²)
e. 2/3x² * 5/4x = 10/12x³ = 5/6x³
f. (2/3x)² = (2²/3²x²) = 4/9x²
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Verified answer
Bonjour,a- 2/3x + 5/4x = 8/12x + 15/12x = 23/12x
b. 2/3x * 5/4x = 10/12x = 5/6x
c. 2/3x - 5/4x = 6/12x - 15/12x = - 9/12x = - 3/4x
d. 2/3x² + 5/4x --> Impossible (on ne peut pas ajouter des x et des x²)
e. 2/3x² * 5/4x = 10/12x³ = 5/6x³
f. (2/3x)² = (2²/3²x²) = 4/9x²