Question 306620
a = -2
t = -3
-at[-t(-a)]
start with the inner most parentheses
-a = 2
-at[-t(2)]
-t = 3
-at[3*2]
-at[6]
then go from left to right
-a = 2
2*t*6
t = -3
2*-3*6
-36