Question

TRY THESE
(1) Starting from (-5) x4, find (-5) X(-6)
(ii) Starting from (-6)* 3, find (-6)*(-7)​

Answer 1

Answer:

1)

a) (-5) × 4 = -20

b) (-5) × (-6) = 30

2)

a) (-6) × 3 = -18

b) (-6) × (-7) = 42

Step-by-step explanation:

Consider

1)

a) (-5) × 4

Using Rule (-a ) x b = -ab  

We have ,

(-5) × 4 = -20

b)  (-5) × (-6)

Using Rule (-a) x (-b) = ab

We have ,

(-5) × (-6) = 30

2)

a) (-6) × 3

Using Rule (-a ) x b = -ab

We have ,

(-6) × 3 = -18

b)  (-6) × (-7)

Using Rule (-a ) x (-b) = ab

We have ,

(-6) × (-7) = 42