It's called the zero property
The zero property because it has a zero.
0 as the additive identity for numbers.
The existence of an additive identity, denoted by 0, which has the property that x + 0 = 0 + x = x for all x belonging to a set of numbers.
83*0 = 0 is the multiplicative property of zero. Incidentally, the identity property of multiplication states that x*1 = x = 1*x for all x in the group. That is a different property though sometimes confused with this one.
Yes it does equal 0. This is proved by commutative property of maths which says that 2 numbers can be multiplied in many ways.
because its zero
It defines 0 as the identity in the group of numbers with respect to addition.
It is called the zero property which says that any number into zero gives zero.
2x2-x-15 = 0 When factorised: (2x+5)(x-3) = 0