Domain of Rational Functions Video 4
Finding the domain of a rational function using factoring
Properties of Rational Functions and Expressions Video 7
Author: John Fisk
This video explains how to reduce rational expressions and demonstrates the principles by solving the following problems. You can try to solve the problems before watching the video and click "Reveal Answer" to see if you are correct.
Problem: Reduce the following rational expressions, if possible.
- \(\dfrac{2}{4x}\)
- \(\dfrac{6}{4+x}\)
- \(\dfrac{3x+9}{x^2+3x}\)
- \(\dfrac{x+1}{x^2+x+1}\)
- \(\dfrac{1}{2x},\quad\) \(x\neq 0\)
- Not reducible
- \(\dfrac{3}{x},\quad\) \(x\neq 0,-3\)
- Not reducible
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