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a) -26(-64)(-32) -2(-4)(-1) -8
--------------------- = --------------- = ------- = -8
-13(-16) (32) -1(-1) (1) 1
-1 -1 1
8 -8
b) 200(-72) (3) 8 -8 3 -192
------------------- = ------------- = --------- = + 192
9 ( -1 ) (25) 1 -1 1 -1
1 -1 1
3 -4
c) 10(-1) 27 ( -16) 10(-1) 3 ( -4) -10 -12 -22
--------- + ------------- --------- + ----------- = =
-1(-1) -9(-4) -1(-1) -1 (-1)
-1 (-1) 1 1
-------------------------------------------- = -------------------------------- = 22/2= 11
-4 -3 -1
-8(-15) - -9(-4-2) -4(-3) - -1(-4-2) -4 6 2
------------- -------------- ------------- ----------- = + =
5 (-6) ( -3 )² 1 (-3) 1
1 -3 1
5 2 5
d) 45 ( 38 ) 10 (-1) 10 -5
---------------- : ------------ = ------ : ------= 10 : 5 = -2
19 ( 9 ) 2 (-1) 1 -1
1 1 1 (-1)