Warm Up 10/28/13 1. -2 – 5 – (4) 2. 3 – 7 – (-6) 3. -12 – (-10) – (-8)

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Presentation transcript:

Warm Up 10/28/13 1. -2 – 5 – (4) 2. 3 – 7 – (-6) 3. -12 – (-10) – (-8)

Topic: Distributive property Objective: To use Distributive Property to simplify expressions Standard: 1.1 Question / Key Words Notes or Solutions to Problems

Simplify using the distributive property Examples 6(12 – b) 72 – 6b Question / Key Words Notes or Solutions to Problems Simplify using the distributive property Examples 6(12 – b) 72 – 6b 3) (c + 1)(5) 5c + 5 4) 3(a – 8) 3a – 24

Simplify using the distributive property Examples 5) -2(2x + 4 ) -4x Question / Key Words Notes or Solutions to Problems Simplify using the distributive property Examples 5) -2(2x + 4 ) -4x – 8 6) a(a – 8) a2 – 8a 7) - (x – 2) 1 -x + 2 8) - (-3 – x) 1 3 + x

(16x) (12) Simplify using the distributive property Examples 1 Question / Key Words Notes or Solutions to Problems Simplify using the distributive property Examples 1 1 (16x) 1 (12) 9) (16x + 12 ) 4 + 4 4 1 1 16 12 x + 4 4 4x + 3

(3x) (9) Simplify using the distributive property Examples 1 Question / Key Words Notes or Solutions to Problems Simplify using the distributive property Examples 1 1 (3x) 1 (9) 10) (3x – 9) 3 – 3 3 1 1 3 9 x – 3 3 x – 3

Simplify using the distributive property Examples 1 11) - (6x + 12) Question / Key Words Notes or Solutions to Problems Simplify using the distributive property Examples 1 11) - (6x + 12) -2x – 4 3 1 12) (10x + 25) 2x + 5 5

(10x) (25) Simplify using the distributive property Examples 2 Question / Key Words Notes or Solutions to Problems Simplify using the distributive property Examples 2 2 (10x) 2 (25) 13) (10x + 25) 5 + 5 5 1 1 20 50 x + 5 5 4x + 10

(3x) (9) Simplify using the distributive property Examples 2 Question / Key Words Notes or Solutions to Problems Simplify using the distributive property Examples 2 2 (3x) 2 (9) 13) (3x – 9) 3 – 3 3 1 1 6 18 x – 3 3 2x – 6

5 7 + 3 35 15 5 7 3 5(7) + 5(3) A = l•w = w•l = 5 (7 + 3) = = 35 + 15 Question / Key Words Notes or Solutions to Problems Find the area of a rectangle whose width is 5 and whose length is 7 + 3. 5 7 + 3 5(7) + 5(3) A = l•w = w•l = 5 (7 + 3) = = 35 + 15 = 50 un2 35 15 5 7 3

w l 2w + 9 w (2w + 9) 2) Find an expression for the Question / Key Words Notes or Solutions to Problems 2) Find an expression for the area of a rectangle if its length is 9 more than twice its width. w l = 2w + 9 Area = l•w = w•l w (2w + 9) 2w2 + 9w

w l 2w – 3 w (2w – 3) 3) Find an expression for the Question / Key Words Notes or Solutions to Problems 3) Find an expression for the area of a rectangle if its length is 3 less than twice its width. w l = 2w – 3 Area = l•w = w•l w (2w – 3) 2w2 – 3w