bonjour
A ) ( 6 x + 1 ) x - ( 3 x + 2 ) ( 6 x + 1 ) = 0
( 6 x + 1 ) ( x - 3 x - 2 ) = 0
( 6 x + 1 ) ( - 2 x - 2 ) = 0
x = - 1/6 ou - 1
b) ( 2 x - 1 )² - ( x + 2 )² = 0
( 2 x - 1 + x + 2 ) ( 2 x - 1 - x - 2 ) = 0
( 3 x + 1 ) ( x - 3 ) = 0
x = - 1/3 ou 3
fais le dernier
