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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.
Terms : The several parts of an algebraic expression separated by ’+’ or ’-’ operations are called the terms of the expression.
An algebraic expression in which the variables involved have only nonnegative integral powers is called a polynomial.
respectively and we also say that +1 is the constant term in it.
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.
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