Bonjour, je suis bloqué au 27, pouvez vous m’aider merci !

Bonjour,

A = - 5 (x + 2)

A = - 5x - 10

B = - 3 (x - 2)

B = - 3x + 6

C = x (x + 3)

C = x² + 3x

D = x (4 - x)

D = 4x - x²

D = - x² + 4x

E = - 3x (x + 4)

E = - 3x² - 12x

F = 2x (x - 7)

F = 2x² - 14x

G = 6x (2x + 1)

G = 12x² + 6x

H = - 4x (5x - 10)

H = - 20x² + 40x.

bonjour

A = - 5 x - 10

B = - 3 x + 6

C = x² + 3 x

D = 4 x - x²

E = - 3 x² - 12 x

F = 2 x² - 14 x

G = 12 x² + 6 x

H = - 20 x² + 40 x