1) Let's consider four integers
-2, 2, 4, -5
a) -2 x -2 = -4 ⇒ -4 ≤ -2
b) 2 x 4 = 8 8 > 2 and 8 > 4
c) -2 x 4 = -8 -8 ≤ -2 and < -4
d) -5 x 4 = -20 -20 ≤ -5 and -20 < 4
2) Conclusion when the product of those intergers
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