Svp je n’arrive pas à les exercices de maths

Réponse :

Bonsoir,

a.

A = 3x + 6 = 3(x + 2)

R = 5x - 10 = 5(x - 2)

C = 4x + 9x = 13x

D = 12 + 18x = 6(3x + 2)

E = 50 - 10x = 10(5 - x)

F = x² + 7x = x(x + 7)

G = 4x² - 20x = 4x(x - 5)

H = 3x²  - 5x = x(3x - 5)

I = 12x² - 3 = 3(4x² - 1)

b.

A = 7x + 7 = 7(x + 1)

B = 3x² + 3x = 3x(x + 1)

C = 18x - 9x = 9x

D = 10 - 20x = 10(1 - 2x)

E = 4x² - 9x = x(4x - 9)

F = 10x² + 35x = 5x(2x + 7)