An algebraic expression say 2 × x + y ÷ 2 – 3 cannot be evaluated to a definite number as values of x and y are unknown. x and y may be given any values and the resulting value of the expression would differ as a result.
The expression is written in a more compact form as
2x + y / 2 – 3
This expression has three algebraic terms. Terms of an algebraic expression are separated by + or – signs. 2x, y / 2 and 3 are the three terms in the given algebraic expression. 2 and x are factors of the term 2x. y / 2 has factors 1 / 2 and y. Continue reading “Introduction to Algebraic Expressions”