Question

{ 2 ³ x 30 - [  76 - ( 9 - 3 ) ² ] } : 50

Answer 1

={ 2 ³ x 30 - [  76 - ( 9 - 3 ) ² ] } : 50

={ 6 x 30 - [ 76 - 6² ] } :50

={ 180 - [ 76 - 36 ]} :50

={ 180 - 40 } :50

=140 :50

=2,8

Answer 2

{2^3 x 30-[ 76-(9-3)^2]} : 50

= { 8x30-[76-6^2]} :50

= [240-(76-36)]:50

=( 240-40):50

=200:50

=4