Step-by-step explanation:
Union = elements of A + elements of B
Union = ( 1,6,7,9,12)
The answer should be n=-8
GCF 32 24 40
^ ^ ^
2 16 2 12 2 20
^ ^ ^
2 8 2 6 2 10
^ ^ ^
2 4 2 3 2 5
^
2 2
(2) (2 & 3) (2 & 5)
C, if there is an odd number of negatives it is negative, if there is an even number it is positive
