Bonjour,
Factoriser chaque expression :
a. (x+7) (2x-5) - (2x-5) (3x+2)
b. (4x-3) (2x+1)-5x (4x-3)
c. (2x-5) (x+2) - (2x-5) (3x-7)
Factoriser chaque expression :
a. (x+7) (2x-5) - (2x-5) (3x+2)
b. (4x-3) (2x+1)-5x (4x-3)
c. (2x-5) (x+2) - (2x-5) (3x-7)
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bonjour
a . ( 2 x - 5 ) ( x + 7 - 3 x - 2 )
= ( 2 x - 5 ) ( - 2 x + 5 )
b . ( 4 x - 3 ) ( 2 x + 1 - 5 x )
= ( 4 x - 3 ) ( - 3 x + 1 )
c . ( 2 x - 5 ) ( x + 2 - 3 x + 7 )
= ( 2 x - 5 ) ( - 2 x + 9 )