b) 2: ( 1/2 - 2/3) ^2+ 0,125^3. 8^ 3- ( -12)^4: 6^4.

b) 2:12−232+0,1253.83−−124:64

=2:36−462+0,125.83−−12464

=2:−162+13−12464

=2:−1262+1−1264

=2:162+1−24

= 2.6² + 1 – 2⁴

= 2.36 + 1 – 16

= 72 + 1 – 16

= 57