CBSE Class 9 Mathematics Polynomials Worksheet Set 05

CBSE Class 9 Mathematics Worksheet - Polynomials (4)

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Key Concepts

Constants : A symbol having a fixed numerical value is called a constant.

Example : 7, 3, -2, 3/7, etc. are all constants.

Variables : A symbol which may be assigned different numerical values is known as

variable.

Example : C - circumference of circle

r - radius of circle

Where 2 & are constants. while C and r are variable

Algebraic expressions : A combination of constants and variables. Connected by

some or all of the operations +, -, X and is known as algebraic expression.

Example :

etc.

Terms : The several parts of an algebraic expression separated by '+' or '-' operations

are called the terms of the expression.

Example : is an algebraic expression containing 5

terms

Polynomials : An algebraic expression in which the variables involved have only nonnegative

integral powers is called a polynomial.

(i) is a polynomial in variable x.

(ii) is an expression but not a polynomial.

Polynomials are denoted by

Coefficients : In the polynomial , coefficient of

respectively and we also say that +1 is the constant term in it.

Degree of a polynomial in one variable : In case of a polynomial in one variable the

highest power of the variable is called the degree of the polynomial.

Classification of polynomials on the basis of degree.

Please click the below link to access CBSE Class 9 Mathematics Worksheet - Polynomials (4)