Bonjour,

A = -5(x + 2)

A = -5x - 2

B = -3(x - 2)

B = -3x + 2 = 2 - 3x

C = x(x + 3)

C = x² + 3x

D = x(4 - x)

D = 4x - x²

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 = -20x + 40 = 40 - 20x