bonjour
(4 x - 3 )² - x² = 0
( 4 x - 3 - x ) ( 4 x - 3 + x ) = 0
( 3 x - 3 ) ( 5 x - 3 ) = 0
x = 1 ou 3 /5
( 2 x - 1 )² - ( 3 - x ) ( 2 x - 1 ) = 0
( 2 x - 1 ) ( 2 x - 1 - 3 + x ) = 0
( 2 x - 1 ) ( 3 x - 4 ) = 0
x = 1/2 ou 4 /3
16 - ( 2 x + 1 )² = 0
( 4 + 2 x + 1 ) ( 4 - 2 x - 1 ) = 0
( 2 x + 5 ) ( - 2 x + 3 ) = 0
x = - 5/2 ou 3 /2
25 + 30 x + 9 x² = 0
(3 x - 5 )² = 0
x = 5 /3
