Question

prove that - x - = +

in mathamatics plz
urgent​

Answer 1

Answer:

already prove h

-2×-2=4

-a×-b=ab

Answer 2

Step-by-step explanation:

First of all its actually -1×-1=1

So basically,

$- 1 \times - 1 =( { - 1})^{2} = 1$