### Mathematics Class IX

Number Systems
Polynomials
Coordinate Geometry
Lines and Angles
Triangles
Quadrilaterals
Circles
Constructions
Heron’s Formula
Surface Areas and Volumes
Statistics
Probability

# Introduction

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

Example

1. is a polynomial in variable x.

2. is not a polynomial as it has negative power.

3.  is not a polynomial.

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