bonjour
A = ( x + 5) ( x + 3 - 3 )
= ( x + 5 )( x )
B = ( x - 4 ) ( 2 x + 3 + 3 x - 5)
= ( x - 4 ) ( 5 x - 2 )
C = ( 3 x - 1 ) ( x - 2 - 2 x - 5 )
= ( 3 x - 1 ) ( - x - 7 )
D = ( 2 x + 3 ) ( x - 7 )
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bonjour
A = ( x + 5) ( x + 3 - 3 )
= ( x + 5 )( x )
B = ( x - 4 ) ( 2 x + 3 + 3 x - 5)
= ( x - 4 ) ( 5 x - 2 )
C = ( 3 x - 1 ) ( x - 2 - 2 x - 5 )
= ( 3 x - 1 ) ( - x - 7 )
D = ( 2 x + 3 ) ( x - 7 )