Question

Encontre o valor das expressões.- 2 +[(-4).(-7+12)+5. ]


13 - [(-1).(4-5)-2.(-1)]

13+2.[-7-5.(-9+4)]

Answer 1

- 2 +[(-4).(-7+12)+5. ]

- 2 + [(-4) . 5 + 5]

- 2 + [-20 + 5]

- 2 + [-15]

-2 - 15

-17

13 - [(-1).(4-5)-2.(-1)]

13 - [(-1) . (-1) - 2 . (-1)]

13 - [1 + 2]

13 - 3

10

13+2.[-7-5.(-9+4)]

13 + 2 . [-7 -5 . (+5)]

13 + 2 . [-7 - (-25)]

13 + 2 . [-7 + 25]

13 + 2 . 18

13 + 36

49