Explicație pas cu pas:
a=-3+4-5+3-2=1-5+3-2=-4+3-2=-1-2=-3
b=-4-1+2+6-4=-5+2+6-4=-3+6-4=3-4=-1
c=-6-3-5-3-5+4=-9-5-3-5+4=-14-3-5+4=-17-5+4=-22+4=-18
d=-3-8+2-11+6=-11+2-11+6=-9-11+6=-20+6=-14
R: a=-3
b=-1
c=-22
d=-14
