Question

(+10).(-2).(+1).(-3).(+2)​

Answer 1

Resposta:

(+10).(-2).(+1).(-3).(+2) = 120

Answer 2

Resposta:

+120

Explicação passo a passo:

> regra de sinais:

( + ) com ( + ) = ( + )

( - ) com ( - ) = ( + )

( + ) com ( - ) = ( - )

( - ) com ( + ) = ( - )

-------------------------

( + 10 ) . ( - 2 ) . ( + 1 ) . ( - 3 ) . ( + 2 )

= - 20 . ( + 1 ) . ( - 3 ) . ( + 2 )

= - 20 . ( - 3 ) . ( + 2 )

= 60 . ( + 2 )

= + 120