1. 5-5 Roots of Real Numbers II
Objective: To simplify radicals having various indices, and to use a calculator to estimate the roots of numbers.
HW: 5-5 Study Guide

2. Drill #58
Find the following roots:
Factor the following polynomial:

3. Real nth Roots of n x > 0 positive x < 0 negative x = 0 even
(square root, fourth root, etc.)
one + ,
one –
no real roots
odd
one +
one –

4. Even Roots of Variables
When evaluating even roots (n is even) of variables use absolute values when you get odd powers…WHY?

5. Classwork #57
Find the following roots:

6. Evaluating Roots of Monomials
To find a root of a monomial, split the monomial into a product of the factors, and evaluate the root of each factor.
Examples:

7. Study Guide 5-6
#1,2,3

8. Evaluating Roots of Monomials
How do you evaluate roots when n does not divide evenly?
Examples:

9. Homework
Finish Study Guide 5-5