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Virtual Math Learning Center

Virtual Math Learning Center Texas A&M University Virtual Math Learning Center

Quadratic Equations Video 2

Author: John Fisk

This video explains how to factor a quadratic equation using the difference of two squares formula and demonstrates the method by solving the following equations. You can try to solve the problems before watching the video and click "Reveal Answer" to see if you are correct.

Problem: Solve the following equations: 

  1. \(x^2-4=0\)
  2. \(25x^2-7=0\)
  3. \(x^4-9=0\)

  1. \(x=\pm 2\)
  2. \(x=\pm \dfrac{\sqrt{7}}{5}\)
  3. \(x=\pm \sqrt{3}\)

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