Introduction of polynomial

Polynomial – An expression containing variable and constant, power of variable must be whole number. For example

   3+x², 4+6x²

Standard representation of polynomial--     

                                    a₀+a₁x+a₂x²+a₃x³+-----------a_nxⁿ        where a₀, a₁, a₂, ……… a_n are real number and also called coefficient of polynomial and n is whole number.

Checking polynomial----- its true or false

ü  X²+2x+1

ü  X+1/x

 √ x+1/2

Degree of polynomial—In polynomial highest power of variable is called degree of polynomial.

Based on degree there are mainly three types of polynomial
1.Linear polynomial— a polynomial having degree is 1 is called linear polynomial and at most one zeroes.
2. Quadratic polynomial—a polynomial having degree is 2 is called quadratic polynomial and at most two zeroes.
3. Cubic polynomial— a polynomial having degree is 3 is called cubic polynomial and at most three zeroes.

Zeroes of a polynomial-- a polynomial p(x)=0 when x=a then p(a)=0 so x=a is a zeroes of a polynomial
for example     x+1=0 
if x= - 1 

https://youtu.be/lFtkmOuNRns