A combination of constants and variables conected by algebraicoperations.

A symbol which has a fixed value is called a constant. A symbol which can be given any value as desired.

the companion term of a variable.

A term is a number (constant), a variable, or a combination of (product or quotient of)numbers and variables. a part of an algebraic expression which does not involve addition and subtraction, but may be connected by multiplication and division.

an algebraic expression in which the variables have non negetive integral power.

Equality of two algebraic expression which is valid for all the values of the variables in it.

the largest power of a variable in a polynomial.