Question 762559
|3 6 8|
|2 4 0|= 
|3 6 8|

={{{ 3(4*8-6*0)-2(6*8-6*8)+3(6*0-4*8)}}}

={{{ 3(32-6)-2(48-48)+3(6-32)}}}

={{{ 3(26)-2(0)+3(-26)}}}

={{{ 3(26)-3(26)}}}

={{{ 0}}}