# Polynomials

An algebraic expression that contains one or more terms is called a polynomial.

## Introduction

The meaning of polynomial is defined from a prefix “Poly” and a Latin term “Nomial”.

1. The meaning of prefix “Poly” is many.
2. The meaning of “Nomial” is a term.

The meaning of a polynomial is an algebraic expression with one or more terms according to the meanings of poly and nomial. A polynomial actually represents a quantity by one or more terms in mathematical form.

In a polynomial, one term or two or more unlike terms are connected by either plus or minus or both signs for expressing a quantity in algebraic form in mathematics. Polynomials are formed in mathematical form in two different ways.

A polynomial is a monomial, binomial, trinomial, quadrinomial and all multinomials.

### One or More term

A polynomial is purely formed by one term or two or more unlike algebraic terms.

#### Examples

$(1) \,\,\,\,\,\,$ $-7a$

$(2) \,\,\,\,\,\,$ $c^2+0.18d^3$

$(3) \,\,\,\,\,\,$ $ap-q^2+\sqrt{5}r$

$(4) \,\,\,\,\,\,$ $m-7mn+9n^2-10n$

$(5) \,\,\,\,\,\,$ $8x$ $+$ $xy$ $-$ $5y^2$ $-$ $yz$ $+$ $z^5$

### A number with terms

A polynomial is also formed by a number and one or more algebraic terms.

##### Examples

$(1) \,\,\,\,\,\,$ $11$

$(2) \,\,\,\,\,\,$ $a-3$

$(3) \,\,\,\,\,\,$ $8d+ef+\dfrac{1}{3}$

$(4) \,\,\,\,\,\,$ $p+pq+4pq^2+23$

$(5) \,\,\,\,\,\,$ $x-2y-x^2y^2+7xy^2+\sqrt{17}$

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