Question

Aflati rezultatul calculului:2 la puterea21:[(3la puterea3•5:15+7la puterea0)totul la puterea a 5:10 la puterea a 3-6 la puterea 2]totul la puterea3=

Answer 1

2^21:[(3^3•5:15+7^0)^5:10^3-6^2]^3=
=2^21:[(3^2+1)^5:10^3-6^2]^3=
=2^21:(10^5:10^3-6^2)^3=
=2^21:(10^2-6^2)^3=
=2^21:(100-36)^3=
=2^21:(64)^3=
=2^21:(2^6)^3=
=2^21:2^18=
=2^3=8