bonjour
1 ) A = 4
B = 2 + 6 = 8
C = 10
somme = 22
g (x) = ( 3 - 5 x ) / 2
D ( - 3 ) ( 3 + 15 ) / 2 = 18/2 = 9
E = g ( 1) = ( 3 - 5 ) / 2 = - 2 /2 = - 1
D + E = 9 - 1 = 8
F = - 3
G = - 1 +2 = 1
G - F = 1 + 3 = 4
x
3 x
3 x - 2
( 3 x - 2 )²
H ( - 1 = ( - 3 - 2 )² =( - 5² ) = 25
I : ( 3 x - 2 )² = 16
( 3x - 2 )² - 16 = 0
( 3 x - 2 - 4 ) ( 3 x - 2 + 4 ) = 0
( 3 x - 6 ) ( 3 x + 2 ) = 0
x = 6/3 = 2 ou - 2/3
I = 2
H - I = 25 - 2 = 23