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angels33
@angels33
June 2021
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Pourriez-vous m'aider à faire ceci :
1°) Supprimer les parenthèses puis réduire les expressions :
a) A = 2x + (3x + 2) - (1-3x)
b) B = 3x -( 7x² + 3x + 4) + ( -2x² - 7)
2°) Développer puis réduire les expressions :
a) C= 3u (u + 5)
b) D= (2x - 5) (3 - 7x)
c) E= (3-6y) (-5 + y)
d) F = (2x + 4) (5x + 4) - 3 (6 - x)
Merci d'avance :) !
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