Distributivité Simple: 2(k+1) Factoriser: 3x+3y

2(k + 1)
= 2k + 2

3x + 3y
= 3 * x + 3 * y
= 3(x + y)

Développement
2(k +1) = 2 X k +2 X 1
              2k +2

Factorisation
3x +3y = 3(x+y)