Hey there :)
[ ( - 7 )³ - ( - 7³ ) ] - [ ( - 7 )² + 7² ) ]
↓ ↓ ↓ ↓
[( - 343 ) - ( - 343 )] - [( 49 ) + ( 49 )]
Since there are brackets, according to the order of operations, we do perform them separately )
0 - [ 98 ]
- 98
Your answer will be option C) - 98
