### Theory:

An algebraic expression is derived from the constants, variables, and algebraic operations of an integer.

Example:

\(6x\); \(4y^2\); \(5x+z^2\) and \(1+y+y^2\) are some algebraic expressions.

Suppose an algebraic expression \(a + 2\) is generated. In this '\(a\)' is a

**variable**, and '\(2\)' is**constant**, and the expression is combined by**algebraic operation**'\(+\)'.- A variable can take any value. Its value is not fixed at all.
- A constant has a fixed value for it.
- Operations on algebraic expressions such as addition, subtraction, multiplication, division etc.

Important!