Resposta :
( - 2 ) ³ = ( - 2 ) . ( - 2 ) . ( - 2 ) = - 8
( - 3 ) ² = ( - 3 ) . ( - 3 ) = + 9
( - 2 ) ² = ( - 2 ) . ( - 2 ) = + 4
- 8 + 1 + 9 - ( + 4 ) =
- 8 + 1 + 9 - 4 =
- 12 + 10 = - 2
( - 3 ) ² = ( - 3 ) . ( - 3 ) = + 9
( - 2 ) ² = ( - 2 ) . ( - 2 ) = + 4
- 8 + 1 + 9 - ( + 4 ) =
- 8 + 1 + 9 - 4 =
- 12 + 10 = - 2