Răspuns :
intreg daca -5 /-1 ; -5 /-5 ; -5 / 1 ; -5 /5
atunci 2x-1=-1 2x-1=-5 2x-1=1 2x-1=5
2x=0 2x=-4 2x=2 2x=6
x=0 x=-2 x=1 x=3
atunci 2x-1=-1 2x-1=-5 2x-1=1 2x-1=5
2x=0 2x=-4 2x=2 2x=6
x=0 x=-2 x=1 x=3