aidez moi svp et merci ❤️​

Réponse:

I = 3x + 6y

= 3×x + 3×2y

I = 3(x + 2y)

J = 2ab - 4a + 12abc

= 2a × b - 2a × 2 + 2a × 6bc

J = 2a (b -2 + 6bc)

K = (x - 5) (2x + 1) - (x - 5) (3x + 7)

= (x - 5) (2x + 1 - 3x - 7)

= (x - 5) (-x - 6)

K = - (x - 5) (x + 6)

L = (2x - 3) (2x - 3)

M = (5x - 9) (5x + 9)