How do you find multiplicity of zeros?

How many times a particular number is a zero for a given polynomial. For example, in the polynomial function f (x) = (x-3) 4 (x-5) (x-8) 2, the zero 3 has multiplicity 4, 5 has multiplicity 1, and 8 has multiplicity 2. Although this polynomial has only three zeros, we say that it has seven zeros counting multiplicity