Bonsoir,
A x( 9x-5)
B 3(2x +3)
C x( x+5 +3x -2)= x( 4x +3)
D (x-6) ( x+4-1+x)
= (x-6) ( 2x +3)
E (3x-1) ( 1-3x-1)
= (3x-1 ) ( -3x)
identités remarquables F (x+4)²
G (2-x) (2+x)
H (5- 6a)²
J (4x-3-1) ( 4x-3 +1)
= (4x -4) ( 4x-é)
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Bonsoir,
A x( 9x-5)
B 3(2x +3)
C x( x+5 +3x -2)= x( 4x +3)
D (x-6) ( x+4-1+x)
= (x-6) ( 2x +3)
E (3x-1) ( 1-3x-1)
= (3x-1 ) ( -3x)
identités remarquables
F (x+4)²
G (2-x) (2+x)
H (5- 6a)²
J (4x-3-1) ( 4x-3 +1)
= (4x -4) ( 4x-é)