A polynomial is a function of the form f(x)=anxn+an−1xn−1+...+a2x2+a1x+a0 .
where an,an−1,...a2,a1,a0 . are contants
and n is a natural number.
To find zeroes :
p(x)=0
Given that polynomial is
p(x)=x−2
to find zero of given polynomial
p(x)=x−2=0
⇒x−2=0
⇒x=2
Hence, 2 is the Zero of given polynomial p(x)