Question

2^13 : 4^6 + 5^3 - 5^2 x [729 : 3^5 + 16 : (7 x 3^2 - 55)]

Answer 1

2^13 : 4^6 + 5^3 - 5^2 x [729 : 3^5 + 16 : (7 x 3^2 - 55)] =
=2^13 : 2^12 + 5^3 - 5^2 x [3^6 : 3^5 + 16 : (63 - 55)] =
=2 + 5^3 - 5^2 x (3 + 16 : 8) =
=2 + 5^3 - 5^2 x (3 + 2) =
=2 + 5^3 - 5^2 x 5 =
=2 + 5^3 - 5^3 =
=2