bonjour
L = ( 2 x - 5 ) ( 3 + x + 7 )
L = ( 2 x - 5 ) ( x + 10 )
M = ( 4 - 3 x ) ( 1 + x - 5 )
M = ( 4 - 3 x ) ( x - 4 )
N = ( 2 x + 1 ) ( 2 x + 1 - 4 x + 7 )
N = ( 2 x + 1 ) ( - 2 x + 8 )
N = 2 ( 2 x+ 1 ) ( - x + 4 )
K = 8 ( a - 9 b )
P = 7 x ³ ( x ² + 3 x + 5 )
R = 2 x ( 9 x - 6 + 1 )
R = 2 x ( 9 x - 5 )
