17.Calculati
a) (4+3) ^3-(4-3)^10
b)(10^3-125x2^3):123^123
c)[(10^3:5^2:8+3^2x5^2):3^0]x2^2 ^0
d){[(12^2 +5^2):13]^2-2^7-2^0}:2^3​