Sagot :
Bonjour
( 2 x + 6 ) * 4 x + 4 ( 2 x + 6 ) = 0
8 x ² + 24 x + 8 x + 24 = 0
8 x² + 32 x + 24 = 0
8 ( x + 3 ) ( x + 1 ) = 0
x = - 3 ou - 1
S ( - 3 ; - 1 )
Bonjour
( 2 x + 6 ) * 4 x + 4 ( 2 x + 6 ) = 0
8 x ² + 24 x + 8 x + 24 = 0
8 x² + 32 x + 24 = 0
8 ( x + 3 ) ( x + 1 ) = 0
x = - 3 ou - 1
S ( - 3 ; - 1 )