Radical Polynomial Expressions (Part 2)

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Taught by MrRutter
  • Currently 3.0/5 Stars.
6308 views | 2 ratings
Part of video series
Meets NCTM Standards:
Lesson Summary:

In this lesson on Radical Polynomial Expressions (Part 2), you will learn how to find solutions for radicals of polynomial expressions. Through the use of prime factorization, division and multiplication of powers, and understanding basic root definitions, you will be able to simplify complex radical expressions with ease. While a calculator may be helpful in some instances, it is important to try and work through the problems without one as it will be faster in cases where decimals are not preferred.

Lesson Description:

Learn how to find exact solutions for radicals of polynomial expressions.

Questions answered by this video:
  • How do you simplify the radical of a polynomial expression?
  • What is the cube root of 216 and how do you find it?
  • What is the square root of x^2?
  • What is the cube root of -125x^6?
  • What is the fourth root of 16p^8q^4?
  • Why do you have to put an absolute value sign around a variable when you take the square or fourth or even root of the variable?
  • Why is the square root of x^2 equal to the absolute value of x?
  • What is the square root of -4s^4?
  • Staff Review

    • Currently 3.0/5 Stars.
    This lesson picks up from the previous lesson by finding square and cube roots of both numbers and variable expressions. This sometimes confusing topic is explained step by step in a very understandable way.
  • jbhawkins

    • Currently 4.0/5 Stars.
    Great personality, Have the numbers bigger, and easier to see, find little ways to express your point more clearly. Great personality and enthusiasm.