Question

calculează b-2a=,stiind ca : a=1000-88×8+8×(8×8); b=444×(4+4)-44×44

Answer 1

a=1000-88×8+8×(8×8)=1000-704+8×64
=1000-704+512=296+512=808
b=444×(4+4)-44×44=444×8-44×44=352-1936
=-1584
b-2a=-1584-2×808=-1584-1616=-3200

Answer 2

a = 1000 - 88 * 8 + 8 * (8 * 8)
a = 1000 - 704 + 8 * 64
a = 296 + 512
a = 808
b = 444 * (4 * 4) - 44 * 44
b = 444 * 16 - 1936
b = 7104 - 1936
b = 5168
b - 2a = 5168 - 2 * 808 = 5168 - 1616 = 3552