EXERCICE 1 Factoriser les expressions : A = 4x - 4y Fiche d'exercices n°1 B = 49a - 7b EXERCICE 2 Factoriser les expressions : A = 3x² + 6x B = 36 - 6x C = 3x² + 7x C = 7x+5x² D = xy - x D = 3x - x
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A = 4 x - 4 y = 4 ( x - y )
B = 49 a - 7 b = 7 ( 7 a - 1 )
A = 3 x ( x + 2 )
B = 6 (6 - x )
C = x ( 3 x + 7 )
C = x ( 7 + 5 x )
D = x ( y - 1 )
D = x ( 3 - 1 ) = 2 x