Réponses

2013-11-28T19:45:41+01:00
2013-11-28T19:46:41+01:00
A=3²-2*4
=9-8
=1

b=10²-9*11
=100-99
=1

c=5²-4*6
=25-24
=1

d=14²-13*15
=196-195
=1