Square Roots and Radicals 11

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Taught by YourMathGal
  • Currently 4.0/5 Stars.
5941 views | 2 ratings
Part of video series
Meets NCTM Standards:
Lesson Description:

Square Roots and Radicals Part 11 covers adding and subtracting with square roots.

More free YouTube videos by Julie Harland are organized at http://yourmathgal.com

Questions answered by this video:
  • How do you add and subtract square roots?
  • How do you know when can you add or subtract radicals?
  • What does 3sqrt(2) + 5sqrt(2) equal?
  • Why can you not add 2sqrt(3) + 5sqrt(2)?
  • How can you add and simplify square root 8 + square root 18?
  • How can you add and simplify 2*sqrt(27) + 3*sqrt(50)?
  • How can you subtract and simplify 5x*sqrt(45x^3) - 3*sqrt(20x^5)?
  • How do you subtract and simplify 3m*sqrt(18x^2) - x*sqrt(27m^2)?
  • How do you know when you can combine variables and square roots?
  • How do you simplify and combine like terms in 4x*sqrt(32) - sqrt(18x^2) + 2x*sqrt(128)?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson explains the concept of adding and subtracting square roots with common expressions under the radical sign. This is a very common concept in Algebra, and this is a very good tutorial to watch in order to learn this idea. Some very complicated example problems are simplified and explained step by step.