a) x = 3 * 9 = 27
b) y= -11 * 11 = -121
c) z = -13 * -12 = 156
d) a = -17 * 11 = -187
e) m = 1 * 34 = 34
f) n = -1 * -54 = 54
g) u = -18 * 43 = -774
h) v = -9 * -89 = 801
