Question

(5*12 x 25*-3 x 625*-2)*-3

Answer 1

  
 

(5*12 x 25*-3 x 625*-2)*-3
[5^12 x (5^2)^-3 x (5^4)^-2]^-3
[5^12 x 5^-6 x 5^-8]^-3
[5^(12-6-8)]^-3
[5^-2]^-3
5^6