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Warm-up: Replace the ? With a number
1. 2 = 8?
3. 3 = 27
2. 2 = 25 6. 3 = 64
5. 2 = 144
8. 2 = 64
7. 5 = 125
4. 3 = 81
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HOME
WORK
Convert from roots to exponentsEvaluate Rational exponents
Roots and Exponential Notation
xm
n = x
x
mn
n( )m
6443
= 6434
RootPower
Base
Flower Power Root Rule
RootFlower/Power
932
Base
Change from root notation to exponent notation:
12523
12523
n4
y7
( )5
n54
y72
58
518
Change from exponent notation to root notation:
3235
3235
x9x92
y13 y
3
Flower Power Root Rule Steps
Root
Flower/Power
9 3 2
1. Take the Root
2. Use the Power
9 = 3
= 33 = 27= 27
Flower Power Root Rule Steps
Root
Flower/Power
8 5 3
1. Take the Root
2. Use the Power
= 2
= 25 = 32= 32
83
Flower Power Root Rule Steps
Root
Flower/Power
16 3 4
1. Take the Root
2. Use the Power
= 2
= 23 = 8= 8
164
Flower Power Root Rule Steps
Root
Flower/Power
8-2 3
1. Take the Root
2. Use the Power
3. If there is a negative exponent, take the reciprocal of your answer
83 = 2
= 22 = 4
= 1/4
= 1/4
Flower Power Root Rule Steps
Root
Flower/Power
25-3 2
1. Take the Root
2. Use the Power
3. If there is a negative exponent, take the reciprocal of your answer
25 = 5
= 53 = 125
= 1/125
= 1/125
Flower Power Root Rule Steps
Root
Flower/Power
64-1 6
1. Take the Root
2. Use the Power
3. If there is a negative exponent, take the reciprocal of your answer
646 = 2
= 21 = 2
= 1/2
= 1/2
Assignment: Complete both sides of handoutChapter 11 Rational exponents
worksheetChapter 11 quiz: this week Friday!Chapter 11 test: next week Friday!
Quiz Answers