Verified answer

Réponse :

Explications étape par étape

Bonjour

Developper :

A = -5(-2x + 4)

A = 10x - 20

B = -3(-6 - 4x)

B = 18 + 12x

C = -4(7 - 5x)

C = -28 + 20x

D = (-5x + 4) * 2

D = -10x + 8

E = (2 - 3x) * 3x

E = 6x - 9x^2

F = -2x(3x + 5)

F = -6x^2 - 10x

G = -4x (-3x + 6)

G = 12x^2 - 24x

H = 5x(-4 + 2x)

H = -20x + 10x^2

Verified answer

Bonjour,

Développer :

A = - 5 (- 2x + 4)

A = 10x - 20

B = - 3 (- 6 - 4x)

B = 18 + 12x

B = 12x + 18

C = - 4 (7 - 5x)

C = - 28 + 20x

C = 20x - 28

D = (- 5x + 4) * 2

D = - 10x + 8

E = (2 - 3x) * 3x

E = 6x - 9x²

E = - 9x² + 6x

F = - 2x (3x + 5)

F = - 6x² - 10x

G = - 4x (- 3x + 6)

G = 12x² - 24x

H = 5x (- 4 + 2x)

H = - 20x + 10x²

H = 10x² - 20x.