Verified answer

Bonjour

Developper :

A = -3x(2 - x)

A = -3x * 2 - 3x * -x

A = -6x + 3x^2

B = 5x (-7 -2x)

B = -35x - 10x^2

C = -5(-7 - 2x)

C = 35 + 10x

D = -x(-3x + 4)

D = 3x^2 - 4x