Google Classroom
GeoGebraGeoGebra Classroom

Example 4

Simplify the rational expression .
  1. Identify any invalid values of the expression.
  2. Rewrite the numerator with –1 as a factor.
  3. Simplify the result to find an equivalent expression.
This applet is provided by Walch Education as supplemental material for their mathematics programs. Visit www.walch.com for more information.