1. a) [tex]= 9+8+1+1 = 19[/tex]
b)
[tex]= 8+2*(2^6:2^4 + 2^3 : (2^8:2^6-2^6:2^5))\\= 8 + 2*(2^2 + 2^3 : (2^2-2))\\= 8+ 2*(4+ 8 : 2)\\=8+16\\=24[/tex]