Odpowiedź:
Zad 3
a) 2 × 4 > 0
-5 × 1 < 0
b) (-2) × (-8) > 0
-2 × 1 < 0
c) 2 × 2 > 0
1 × (-1) < 0
Zad 4
a) -3 × 5
b) 3 × 10
c) -2 × 1
D) -6 × 3
Zad 5
a) -14
-42
-60
-100
-20
-500
b) -600
-32000
-150000
-3000
60000
60000
Zad 6
a) (-7)² = 49
-6² = -36
(-2)³ = -8
-2³ = -8
b) (-6)² = 36
-9²= -81
(-4)³= -64
-4³= -64