If a=b or both a and b =0
0 is the additive identity for numbers and the identity property is illustrated by 1+0 = 1
a * 0=0
The identity property for addition states that there is a number, 0, such that x + 0 = 0 + x = x for all numbers x.
The property used for the equation 13n = 0 is the zero product property. This property states that if the product of two numbers is zero, then at least one of the numbers must be zero. In this case, if 13n equals 0, then n must be 0 because any number multiplied by zero equals zero.
If a=b or both a and b =0
0 is the additive identity for numbers and the identity property is illustrated by 1+0 = 1
a * 0=0
The identity property for addition states that there is a number, 0, such that x + 0 = 0 + x = x for all numbers x.
It defines 0 as the identity in the group of numbers with respect to addition.
I t is the number 0, which has the property that x + 0 = 0 + x = x for all rational numbers x.
The question is ambiguous because there is no sign shown before the final 6. Assume it is +6 since -6 would make factorisation very difficult. Thus the equation is 6b2 - 13b + 6 = 0 Then 6b2 - 4b - 9b + 6 = 0 or 2b(3b - 2) - 3(3b - 2) = 0 ie (3b - 2)(2b - 3) = 0 then 3b -2 = 0 or 2b - 3 = 0 so 3b =2 or 2b = 3 ie b = 2/3 or b = 3/2
0 is the additive identity for the set of numbers.
0 * x = 0 for all numbers x.
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.
That would still be 4. If it were times 0 it would be 0.
Call the numbers "a" and "b": a + b > a - b b > -b 2b > 0 b > 0 In other words, when the second number is greater than zero.