A polynomial is an expression p(x) of the form : p(x) = a_{0}x^{n}+ a_{1}x^{n-1}+ a_{2}x^{n-2}+....+a_{n}

where

a_{1,}a_{2......are real numbers }andn is whole no.

Q1. Why did we use ....n... as a subscript for .....a.... at the last?