are examples. If you write it in decimal form, it is either terminating, e.g. 1/2=0.5 or non-terminating but repeating, e.g. 1/3=0.333333....
IRRational numbers, when represented in decimal form is non-terminating and non-repeating. It cannot be represented as a/b for any integers a,b. Examples are
Polynomials are of the form where x are variables or indeterminates and are real numbers and x are natural numbers. For example, . Here, .
NOte that the exponents of x should be natural numbers for it to be a polynomial