Réponses

2013-10-24T14:21:10+02:00
2013-10-24T14:28:39+02:00
A = -20 + 3 + 4 - 5 - 8 + 2 
= -17 - 1 - 6
= -18 - 6
= -24
A=-20+3+4-5-8+2 =-20-5-8+3+4+2 =-17-1-6 =-18-6 =-24