Simplify the rational expression [math]\frac{5}{x^2}+\frac{3}{x}+\frac{1}{4x}[/math].

[list=1][br][*]Identify any invalid values of the expression.[br][/*][*]Find a common denominator.[br][/*][*]Rewrite each term of the expression using the new denominator.[br][/*][*]Check to see if the result can be written in a simpler form.[br][/*][/list][br][br]This applet is provided by Walch Education as supplemental material for their mathematics programs. Visit [url=http://www.walch.com/]www.walch.com[/url] for more information.