a)= 13^2+{17^15:17^14+2*(200^4:100^4+11)}=169+[17+2*(2^4+11)]=169+[17+2*(16+11)]=169+[17+2*27]=169+(17+54)=169+71=240
b)= 41^6 :41^6+53^7:53^6+11*(6^55:6^54-2^145:2^144)=1+53+11*(6-2)=54+11*4=54+44=98
c)=(3^4)^5:3^19+31^14:31^13+165-11+(15^24:3^23):5^22=
=3^20:3^19+31+165-11+(5^24*3^24:3^23):5^22=
=3+31+165-11+3*5^24:5^22=
=34+154+3*5^2=
=188+3*25=188+75=263
unde 2^3 inseamna 2 la puterea a treia
