Răspunsuri

2014-05-27T10:11:35+03:00
[-6-(-9+2)+(-5+8)]-[-2+6-(-6+8)] =
(-6 + 9 - 2 -5 +8) - (-2 + 6 +6 -8 ) =
4 - 2 =
2
2014-05-27T10:12:48+03:00
[-6-(-9+2)+(-5+8)]-[-2+6-(-6+8)]=
[-6-(-7)+(+3)]-[4-(+2)]=
(-6+7+3)-(4-2)=
(1+3)-2=
4-2=
2