bonjour
A = 2 ( x + 4 )
B = 3 x ( x - 2 )
C = 13 ( x - 1 )
D = x² + ( 2 x + 1 ) x = x² + 2 x² + x = x ( x + 2 x + 1 )
E = ( x + 3 ) ( x + 3 - 4 x + 1 ) = ( x + 3 ) ( - 3 x + 4 )
F = ( x + 3 ) ( x + 3 + 2 x - 5 ) = ( x + 3 ) ( 3 x - 2 )
G = ( 5 - x ) ( 6 - 6 + 5 x ) = 5 x ( 5 - x ) je pense qu'il manque un signe
H = ( 2 x - 5 ) ( 4 x - 1 - 1) = ( 2 x - 5 ) ( 4 x - 2 )
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bonjour
A = 2 ( x + 4 )
B = 3 x ( x - 2 )
C = 13 ( x - 1 )
D = x² + ( 2 x + 1 ) x = x² + 2 x² + x = x ( x + 2 x + 1 )
E = ( x + 3 ) ( x + 3 - 4 x + 1 ) = ( x + 3 ) ( - 3 x + 4 )
F = ( x + 3 ) ( x + 3 + 2 x - 5 ) = ( x + 3 ) ( 3 x - 2 )
G = ( 5 - x ) ( 6 - 6 + 5 x ) = 5 x ( 5 - x ) je pense qu'il manque un signe
H = ( 2 x - 5 ) ( 4 x - 1 - 1) = ( 2 x - 5 ) ( 4 x - 2 )