Chapter 1.9

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# Chapter 1.9 - PowerPoint PPT Presentation

Chapter 1.9. Grouping Symbols. Review the Distributive Property and Combining Like Terms. Simplifying Algebraic Expressions by Removing Grouping Symbols. y. 1. 5[4x. – 3. – 2. )]. (. ]. 5. [. 4x. – 3y. + 6. 20x. – 15y. + 30. distribute. distribute. can’t combine.

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### Chapter 1.9

Grouping Symbols

Review the

Distributive Property and

Combining Like Terms

y

1. 5[4x

– 3

– 2

)]

(

]

5

[

4x

– 3y

+ 6

20x

– 15y

+ 30

distribute

distribute

can’t combine

(

3b

– c

2. -3[2a

) + 4d]

+ c

+ 4d

– 3b

]

-3

[

2a

-6a

– 3c

+ 9b

– 12d

distribute

distribute

can’t combine

(

x

1

– x

)] – [3x

3. 3[4x

+

(

– 2

)]

– 2

[

4x

[

3x

– 2

– 2

+ 2x

]

+ x

]

3

3[6x – 2]

– [4x – 2]

18x

– 4x

– 6

+ 2

14x

– 4

distribute

distribute

combine

combine

(

3

– 4x

)]}

4. -2{5x – 3[2x

]}

– 3

-2{5x – 3[

2x

+ 4x

[

6x

– 3

]}

-2{5x

– 3

– 18x

-2

{

5x

+ 9

}

{

-13x

+ 9

}

-2

– 18

26x

distribute

distribute

distribute

combine

combine

Grouping Symbols