Question

Through different example, explain why =
(1)= -5×(-3) = 15
(2)= -4×(-4) = 15
Hint = -5×3= -15
= -5×2= -15
= -5×1= -5
:
:
:
-5×(-3)= 15

Answer 1

As we know that..
Multiple of(-×-) always give answer positive
Multiple of (-×+) always give answer in negative
That's why - 15×(-3)=15
- 5×2=-10

Answer 2

(1).
(-5) × 3 = -15 ..(1)
5 × (-3) = -15 ...(2)
-5 × 3 ×5 × -3 = -15 × -15
-5 × -3 × 3 ×5 = 225
- 5 × -3 = 225/15
-5 × -3 = 15