a)(-2)^31:2^29-(-2)^25:4^12=
(-2)^2-(-2)^25:(2^2)^12=
2^2-(-2)^25:2^24=
4-(-2)=+6
b)(1^32-32^2):[(-2×3^2)^2-(3^2-2^3)×(-3^2-2^3)]=
(1-1024):[(-18)^2-1×(-17)]=
(-1023):[(324-1×(-17)]=
-1023:[(324-(-17)]=
-1023:341=-3
c)[(-3)^11×(-3)^9:3^18-10]^2017+(-1)^2018=
(3^20:3^18-10)^2017+1=
(3^2-10)^2017+1=
(-1)^2017+1=
(-1)+1=0
d)17×(17^3-17^2×16-17×16-16)=
17(4913-289×16-272-16)=
17×(4913-4624-272-16)=
17×(289-272-16)=
17×(17-16)=
17×1=17
e)-8-|-12|+|-6^2+5^2|-|-7×17+2^7|=
-8-12+61-9=
-20+61-9=
41-9=32
f)-1024:[-750:(-6×4-1)-(-3)^3-(-7)]=
-1024:[-750:(-24-1)-(-27)-(-7)]=
-1024:[-750:(-25)-(-27)-(-7)]=
-1024:[30-(-27)-(-7)]=
-1024:[57-(-7)]=
-1024:64=-16
