Simplifi ca las siguientes expresiones:

19. 2 32 2⋅
20. 5 32 2⋅
21. 5 6 32 2 4⋅ ⋅
22. 2 36 93 ⋅
23. 3 56 33 ⋅
24. 2 5 36 6 33 ⋅ ⋅
25. 2 510 105 ⋅
26. 2 312 246 ⋅
27. 8 44 33 ⋅
28. 11 6 11 6 7 5 3 2 ⋅ ⋅
29. 6 3 2 2
30. 2 5 2 2−
31. 27 125 9 25 3 ⎛ ⎝⎜ ⎞ ⎠⎟ ⎛ ⎝⎜ ⎞ ⎠⎟
32. 98 4( )
33. 5 254 2 ⋅( )
34. 933
35. 2564
36. 2 5 2 5 2 5 2 5 3 5 1 3 4 1 5 1 ⋅ ⋅ ⋅ ⋅ ⋅ ⎛ ⎝ ⎜ ⎞ ⎠ ⎟− − −
37. 3 4 6 1 27 4 12 ⋅
38. 10 2 5 3 5 3 11 3 − − ⋅
39. 5 5 5 5 5 5 3 2 1 1 4 ⋅⎛ ⎝⎜ ⎞ ⎠⎟ ⋅ ⋅ − −
40. 3 6 8 1 1 − − − +
41. 1 3 1 22 4− −+
42. 2 66 2− −+