6.2 Rational Exponents I canorecreek.hartlandschools.us/subsites/Annette...A number raised to the...

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Notes 6.2.notebook 1 January 30, 2018 Warmup Simplify each of these. 1. 2. 3. 4. 5. 6. 1.) convert expressions containing rational exponents to radical form 2.) convert expressions from radical form to rational exponents 3.) simplify rational exponents completely I can... 6.2 Rational Exponents

Transcript of 6.2 Rational Exponents I canorecreek.hartlandschools.us/subsites/Annette...A number raised to the...

Page 1: 6.2 Rational Exponents I canorecreek.hartlandschools.us/subsites/Annette...A number raised to the power of is equal to the nth root of that ... raised to the mth power. Numbers Algebra

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Warm­up

Simplify each of these.1. 2. 3. 4.

5. 6.

1.) convert expressions containing rational exponents to radical form

2.) convert expressions from radical form to rational exponents

3.) simplify rational exponents completely

I can...

6.2 Rational Exponents 

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6.2  Rational Exponents

Rational Exponents(Having Fractions as Exponents)

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6.2  Rational Exponents

The index is the small number to the left of the radical symbol that tells which root to take.  

For example ,  

Since 23 = 2∙2∙2 = 8 

Recall square roots (          ) and cube roots (           )... 

The radical symbol        is used to represent roots. 

6.2  Rational ExponentsAnother way to write nth roots is by using exponents that are fractions.

Definition of 

WordsA number raised to the power of     is equal to the nth root of that number.

NumbersAlgebraIf b > 1 and n is an integer, where n ≥ 2, then 

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6.2  Rational Exponents♦ I can convert expressions containing rational exponents to radical form ♦

Example 1:  Simplify each expression.

a. b. c. d.

6.2  Rational Exponents

Definition of WordsA number raised to the power of       is equal to the nth root of the number raised to the mth power.

Numbers

AlgebraIf b > 1 and m and n are integers, where m ≥ 1 and n ≥ 2, then 

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6.2  Rational Exponents

b bmn mn

6.2  Rational Exponents♦ I can convert expressions containing rational exponents to radical form ♦Example 2:  Convert each expression containing a rational exponent to radical form.a. b. c.

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6.2  Rational Exponents♦ I can convert expressions containing rational exponents to radical form ♦

Checkpoint:  Convert each expression containing a rational exponent to radical form.1. 2. 3. 4.

6.2  Rational Exponents♦ I can convert expressions from radical form to rational exponents ♦Example 3:  Convert each expression in radical form to a rationalexponent.a. b. c.

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6.2  Rational Exponents♦ I can convert expressions from radical form to rational exponents ♦

Checkpoint:  Convert each expression in radical form to a rational exponent.5. 6.

6.2  Rational ExponentsUsing Properties of Exponents to 

Simplify Expressions

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6.2  Rational ExponentsUsing Properties of Exponents to Simplify Expressions

♦ I can simplify rational exponents completely ♦Example 4:  Simplify.  All variables represent nonnegative numbers.a. b.

6.2  Rational Exponents♦ I can simplify rational exponents completely ♦

Checkpoint:  Simplify.  All variable represent nonnegative numbers.7. 8.

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Learning Target:  Applying Exponent Properties

I can... Homework Problems

simplify expressions using exponent properties involving productssimplify expressions using exponent properties involving quotientssimplify expressions using exponent properties involving zero and/or negatives