Question

What is the name of the property given below if a b = 0 then a = 0 b = 0 or both a = 0 and b = 0?

Answer 1

 for the product to be zero at least one of the factors must be zero.
 If a x b = 0  then a = 0 and/or b = 0

The answer is zero product property

Answer 2

The zero product rule