Question

(minus sign)× (minus sign) =plus sign i.e. -×-=+
-2×-2=4 why???
please don't write 'this is a rule' or any nonsense thing if anybody know right answer then write no need to write something extra​

Answer 1

-2×-2=4(-×-=+)

because ,

Let's Go in Deep

The concept of negative number is introduced so that positive numbers can have their additive inverse, So according to ur question(-×-=+) this is also related to this concept only as according to this fact inverse of inverse of negative number is positive

Hence proved!!!!!

thank YOU for your question ❤❤❤❤❤✔✔✔✔