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INSTRUCTORS Carleen Eaton Grant Fraser Eric Smith
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For more information, please see full course syllabus of Algebra 1
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Lecture Comments (1)

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Post by Taylor Wright on June 22, 2013

You are a great professor. I really enjoy it when a teacher/prof doesn't have to continually look at notes when working through problems, it really shows that they know the material and aren't just going through the motions.

Thanks!

Solving Radical Equations

  • A radical equation is an equation that contains radicals with variables in the radicand.

  • To solve a radical equation, isolate the radical on one side of the equation and then square both sides of the equation. This will eliminate at least one radical. If a radical remains in the new equation, repeat the process.

  • An extraneous solution is a value which produces a negative radicand in one or more of the radicals in the original equation. Check all potential solutions in the original equation. Exclude extraneous values from the solution set.

Solving Radical Equations

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • Radical Equations 0:22
    • Example
  • Solving a Radical Equation 2:04
    • Example
  • Extraneous Solutions 3:14
    • Example
  • Lecture Example 1 7:33
  • Lecture Example 2 9:45
  • Additional Example 3
  • Additional Example 4