12. Resuelve las siguientes operaciones combinadas(3 − 8) + [5 − (−2)] =5 − [6 − 2 − (1 − 8) − 3 + 6] + 5 =9 / [6 / (− 2)] =[(−2)5 − (−3)3]2 =(5 + 3 x 2 / 6 − 4 ) (4 / 2 − 3 + 6) / (7 − 8 / 2 − 2)2 =[?

A) (3 - 8) + [5 - ( - 2)] = - 5 + 7 =

2

b) 5 - [6 - 2 - (1 - 8) - 3 + 6] + 5 =

5 - [6 - 2 + 7 - 3 + 6] + 5 =

5 - [19 - 5 ] + 5 =

5 - 14 + 5 = - 4

c) 9 / [6 / ( - 2)] =

9 / ( - 3) = - 3

d) [( - 2)5 - ( - 3)3]2 =

[ - 15 - ( - 9)]2 =

( - 6)2 = - 12

d) (5 + 3 * 2 / 6 - 4)(4 / 2 - 3 + 6) / (7 - 8 / 2 - 2)2 =

(5 + 6 / 6 - 4)(2 - 3 + 6) / (7 - 4 - 2)2 =

(5 + 1 - 4)5 / 1 * 2 =

2 * 5 / 1 * 2 =

10 / 2 =

5

e) [(17 - 15)3 + (7 - 12)2] / [(6 - 7)(12 - 23)] =

[2 * 3 + ( - 5 * 2)] / [ - 1 * ( - 11)] =

[6 + ( - 10)] / 11 = - 4 / 11

f) 10 - {7 + 3 * 4 - [(( - 2)2 * 2 - 5)]} + (22 + 6 - 5 * 2) + 3 - (6 - 23 / 2) =

10 - {7 + 12 - [(( - 2)4 - 5)]} + (22 + 6 - 10) + 3 - (12 / 2 - 23 / 2) =

10 - {7 + 12 - [ - 8 - 5]} + 18 + 3 - (35 / 2) =

10 - {7 + 12 - [ - 13]} + 18 + 3 - (35 / 2) =

10 - {32} + 18 + 3 - (35 / 2) =

31 - 32 - (35 / 2) = - 1 - (35 / 2) = - 2 / 2 - 35 / 2 = - 37 / 2

Espero que te sirva y que lo hayas entendido, suerte!