What is the Equation to Symbolize Two Points in One Dimension?

[Quarlep]

Lets suppose we have one dimension and in this one dimension we have two points.How can we symbolize both of them or I f we want to symbolize between these numbers what should I use.

Example we have 10 and 5 and I want to symbolize in this numbers and make a equation.Well it means the answer is 5 and 10 both of them.There is such a equation to make it true I thought matrix but I don't know.
Simply I want to find a equation which gave me two answer or and it be a point (beacuse one dimesion) and of course this solition must be work in one dimension

 

[Stephen Tashi]

What about $(x-5)(x-10) = 0$ ?