Question

va rog va rog va rog dau coroana​

Answer 1

a) 441 - ( - 15)^2 - { 1 + 2 * [ - 3 + ( 4 - 10 )]} * ( - 2) + 6 =

= 441 - 15^2 - { 1 + 2 * [ - 3 + ( - 6 )]} * ( - 2 ) + 6 =

= 441 - 225 - [ 1 + 2 * ( - 9 )] * ( - 2 ) + 6 =

= 214 - [ 1 + ( - 18 )] * ( - 2 ) + 6 =

= 214 - ( - 17 ) * ( - 2 ) + 6 =

= 214 - 34 + 6 =

= 180 + 6 =

= 186

b) 1 : ( 1 : 11/30 - 1,5 ) + 2^-3 : 27/40 =

= 1 : ( 1/1 * 30/11 - 15/10 ) + ( 2/1 )^-3 : 27/40 =

= 1 : ( 300/110 - 165/110 ) + ( 1/2 )^3 : 27/40 =

= 1 : 135/110 + 1/8 * 40/27 =

= 1/1 * 110/135 + 1/1 * 5/27 =

= 110/135 + 5/27 =

= 22/27 + 5/27 =

= 27/27 =

= 1