Bonsoir,
Réponse:
A=2(2x+1)+2(7x-3)
A = 2( 2x + 1 + 7x - 6 )
A = 2( 9x - 5 )
B = (3x-3)(2x+8)+(3-5x)(2x+8)
B = ( 2x + 8 ) ( 3x - 3 + 3 - 5x )
B = 2( x + 4 ) ( - 2 x )
B = - 4x ( x + 4 )
C = ( x + 1) ( x + 2 ) - 5 ( x + 2 )
C = ( x + 2 ) ( x + 1 -5 )
C = ( x + 2 ) ( x - 4 )
Bonne chance !
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Bonsoir,
Réponse:
A=2(2x+1)+2(7x-3)
A = 2( 2x + 1 + 7x - 6 )
A = 2( 9x - 5 )
B = (3x-3)(2x+8)+(3-5x)(2x+8)
B = ( 2x + 8 ) ( 3x - 3 + 3 - 5x )
B = 2( x + 4 ) ( - 2 x )
B = - 4x ( x + 4 )
C = ( x + 1) ( x + 2 ) - 5 ( x + 2 )
C = ( x + 1) ( x + 2 ) - 5 ( x + 2 )
C = ( x + 2 ) ( x + 1 -5 )
C = ( x + 2 ) ( x - 4 )
Bonne chance !