bonsoir
A = 2 ( 1 + x )
B = ( 2 x + 1 ) ( 2 x + 1 + x + 3 )
= ( 2 x + 1 ) ( 3 x + 4 )
c = ( x - 3 ) ( x - 3 - 4 x - 1 )
= ( x - 3 ) ( - 3 x - 4 )
D = 2 b ( a + 4 b )
E = ( x + 2 ) ( x + 1 - 5 )
= ( x + 2 ) ( x - 4 )
f = ( x + 2 ) ( x + 1 + 7 x - 5 )
= ( x + 2 ) ( 8 x - 4 )
= 4 ( x + 2 ) ( 2 x - 1 )
g = ( 2 - x ) ( x - 6 - 3 - 4 x )
= ( 2 - x ) ( - 3 x - 9 )
= 3 ( 2 - x ) ( - x - 3 )
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bonsoir
A = 2 ( 1 + x )
B = ( 2 x + 1 ) ( 2 x + 1 + x + 3 )
= ( 2 x + 1 ) ( 3 x + 4 )
c = ( x - 3 ) ( x - 3 - 4 x - 1 )
= ( x - 3 ) ( - 3 x - 4 )
D = 2 b ( a + 4 b )
E = ( x + 2 ) ( x + 1 - 5 )
= ( x + 2 ) ( x - 4 )
f = ( x + 2 ) ( x + 1 + 7 x - 5 )
= ( x + 2 ) ( 8 x - 4 )
= 4 ( x + 2 ) ( 2 x - 1 )
g = ( 2 - x ) ( x - 6 - 3 - 4 x )
= ( 2 - x ) ( - 3 x - 9 )
= 3 ( 2 - x ) ( - x - 3 )