A = 102 - ( 52 . 4 - 43 . 3 ) + 23
A = 100 - ( 25 . 4 - 64 . 3 ) + 8
A = 100 - ( 100 - 192 ) + 8
A = 100 - ( - 92 ) + 8
A = 192 + 8
A = 200
10^2 - ( 5^2 . 4 - 4^3 . 3 ) + 2^3
= 100 - ( 25 . 4 - 64 . 3 ) + 8
= 100 - ( 100 - 192 ) + 8
= 100 - ( -92 ) + 8
= 192 + 8
= 200
= 251