1. January 10, 2012 At the end of today, you will be able to simplify radical expressions by using multiplication and addition.
Warm-up: Simplify. 5.
QUIZ 5.2 TODAY!
HW 5.6: Pg. 254 #15-23, all

2. Correct HW 5.7 #1-20
/ c /3 18. m /

3. Properties of Radicals
Product Property:
Example:
Quotient Property:

4. Simplifying Radicals that aren’t perfect
“Ms. PD has another way to simplify radicals using prime numbers, ask her!”
A prime number is a natural number greater than 1 that is only divisible by 1 and itself.
Example 1: Simplify:
1. Rewrite as two radicals (one of them a square)
Drake: “Think of two numbers, one of them a square#, multiplied to give you 40.”

5. More simplifying radicals that aren’t perfect…
1a. b. C
For variables, divide the power by the index. If there is a remainder, it stays in the radical sign.

6. Like Radical Expressions You can add and subtract radicals if they have the same number under the radical.
For example:
Simplify:
First, simplify the radicals to get like radicals.