Polynomial is an algebraic expression which includes constants, variables and exponents. It is the expression in which the variables have only positive integral powers.


1.  4x^3+3x^2+x+3 is a polynomial in variable x.

2. 4x^2+3x^{-1}-4 is not a polynomial as it has negative power.

3. 3x^{\frac{3}{2}}+2x-3  is not a polynomial.

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