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Algebra 1 Notes: Lesson 1-5: The Distributive Property

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1 Algebra 1 Notes: Lesson 1-5: The Distributive Property

2 Vocabulary Closure Property

3 Vocabulary Closure Property If you combine any two elements of a set and the result is also included in the set, then the set is closed. Distributive Property

4 Vocabulary Closure Property If you combine any two elements of a set and the result is also included in the set, then the set is closed. Distributive Property a(b + c) = ab + ac (b + c)a = ba + ca a(b – c) = ab – ac (b – c)a = ba – ca

5 Example 1 Rewrite 8(10 + 4) using the Distributive Property. Then evaluate. 8(10 + 4) =

6 Example 1 Rewrite 8(10 + 4) using the Distributive Property. Then evaluate. 8(10 + 4) =

7 Example 1 Rewrite 8(10 + 4) using the Distributive Property. Then evaluate. 8(10 + 4) = 8(10)

8 Example 1 Rewrite 8(10 + 4) using the Distributive Property. Then evaluate. 8(10 + 4) = 8(10) +

9 Example 1 Rewrite 8(10 + 4) using the Distributive Property. Then evaluate. 8(10 + 4) = 8(10) + 8(4)

10 Example 1 Rewrite 8(10 + 4) using the Distributive Property. Then evaluate. 8(10 + 4) = 8(10) + 8(4) = = 112

11 Example 2 Rewrite (12 – 3)6 using the Distributive Property. Then evaluate. (12 – 3)6 =

12 Example 2 Rewrite (12 – 3)6 using the Distributive Property. Then evaluate. (12 – 3)6 =

13 Example 2 Rewrite (12 – 3)6 using the Distributive Property. Then evaluate. (12 – 3)6 = 126

14 Example 2 Rewrite (12 – 3)6 using the Distributive Property. Then evaluate. (12 – 3)6 = 126 –

15 Example 2 Rewrite (12 – 3)6 using the Distributive Property. Then evaluate. (12 – 3)6 = 126 – 36

16 Example 2 Rewrite (12 – 3)6 using the Distributive Property. Then evaluate. (12 – 3)6 = 126 – 36 = 72 – 18 = 54

17 Example 3 Rewrite 3(2x2 + 4x – 1) using the Distributive Property. Then evaluate. 3(2x2 + 4x – 1) =

18 Example 3 Rewrite 3(2x2 + 4x – 1) using the Distributive Property. Then evaluate. 3(2x2 + 4x – 1) =

19 Example 3 Rewrite 3(2x2 + 4x – 1) using the Distributive Property. Then evaluate. 3(2x2 + 4x – 1) = (3)(2x2)

20 Example 3 Rewrite 3(2x2 + 4x – 1) using the Distributive Property. Then evaluate. 3(2x2 + 4x – 1) = (3)(2x2) +

21 Example 3 Rewrite 3(2x2 + 4x – 1) using the Distributive Property. Then evaluate. 3(2x2 + 4x – 1) = (3)(2x2) + (3)(4x)

22 Example 3 Rewrite 3(2x2 + 4x – 1) using the Distributive Property. Then evaluate. 3(2x2 + 4x – 1) = (3)(2x2) + (3)(4x) –

23 Example 3 Rewrite 3(2x2 + 4x – 1) using the Distributive Property. Then evaluate. 3(2x2 + 4x – 1) = (3)(2x2) + (3)(4x) – (3)(1)

24 Example 3 Rewrite 3(2x2 + 4x – 1) using the Distributive Property. Then evaluate. 3(2x2 + 4x – 1) = (3)(2x2) + (3)(4x) – (3)(1) = 6x2

25 Example 3 Rewrite 3(2x2 + 4x – 1) using the Distributive Property. Then evaluate. 3(2x2 + 4x – 1) = (3)(2x2) + (3)(4x) – (3)(1) = 6x2 +

26 Example 3 Rewrite 3(2x2 + 4x – 1) using the Distributive Property. Then evaluate. 3(2x2 + 4x – 1) = (3)(2x2) + (3)(4x) – (3)(1) = 6x2 + 12x

27 Example 3 Rewrite 3(2x2 + 4x – 1) using the Distributive Property. Then evaluate. 3(2x2 + 4x – 1) = (3)(2x2) + (3)(4x) – (3)(1) = 6x2 + 12x –

28 Example 3 Rewrite 3(2x2 + 4x – 1) using the Distributive Property. Then evaluate. 3(2x2 + 4x – 1) = (3)(2x2) + (3)(4x) – (3)(1) = 6x2 + 12x – 3

29 Example 3 Rewrite 3(2x2 + 4x – 1) using the Distributive Property. Then evaluate. 3(2x2 + 4x – 1) = (3)(2x2) + (3)(4x) – (3)(1) = 6x2 + 12x – 3

30 Vocabulary Term

31 Vocabulary Term y, p3, 4a, 5g2h Separated by + or - Like Terms

32 Vocabulary Term y, p3, 4a, 5g2h Like Terms 3a2 and 5a2
Have EXACT same variables Coefficient

33 Vocabulary Term y, p3, 4a, 5g2h Like Terms 3a2 and 5a2
Coefficient numbers multiplied by the variable(s)

34 Vocabulary Term y, p3, 4a, 5g2h Like Terms 3a2 and 5a2
Coefficient xy, m

35 Vocabulary Term y, p3, 4a, 5g2h Like Terms 3a2 and 5a2
Coefficient xy, 1m

36 Example 4 Simplify each expression. 15x + 18x

37 Example 4 Simplify each expression. 15x + 18x

38 Example 4 Simplify each expression. a) 15x + 18x 33x

39 Example 4 Simplify each expression. a) 15x + 18x 33x

40 Example 4 Simplify each expression. 15x + 18x 33x b) 10n + 3n2 + 9n2

41 Example 4 Simplify each expression. 15x + 18x 33x b) 10n + 3n2 + 9n2

42 Example 4 Simplify each expression. 15x + 18x 33x b) 10n + 3n2 + 9n2

43 Example 4 Simplify each expression. 15x + 18x 33x b) 10n + 3n2 + 9n2

44 Example 4 Simplify each expression. 15x + 18x 33x b) 10n + 3n2 + 9n2

45 Let’s Use the Distributive Property
15  99

46 Use Distributive Property
15  ( 100 – 1 )

47 Use Distributive Property
15  ( 100 – 1 ) 15  100 – 15  1

48 Use Distributive Property
15  ( 100 – 1 ) 15  100 – 15  1 1,500 – 15

49 Use Distributive Property
15  ( 100 – 1 ) 15  100 – 15  1 1,500 – 15 1,485

50 Assignments Pgs Evens, Evens


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