Réponses

2013-02-03T11:40:09+01:00

v8+v50-v18=v2xv2xv2+v2xv5xv5-v2xv3xv3=4xv2+5v2-3v2=6xv2

 

2v5+v5xv5xv5-6v5xv3xv3=2v5+25v5-18v5=9v5