Download presentation

Presentation is loading. Please wait.

Published byHayley Armes Modified over 2 years ago

1
Expanding and Simplifying Algebraic Expressions x + x = 2x 2x - 5x = -3x 2(x + 1) + 3(x + 3) = 2x + 2 + 3x + 9 = 5x + 11

2
6 + (x - 1)(4) Four groups of (x - 1)

3
6 + (x - 1)(4) This is a zero model.

4
6 + (x - 1)(4) = 2 + 4x The simplified expression is 2 + 4x or 4x + 2. How can you use algebra tiles to show that 2 + 4x is the same as 4x + 2 ?

5
1.2x + 3 + 4x - 5 2.x - 2x - 4 - 2 3.3 (x - 1) 4.-2 (x + 2) Simplify:

6
1. 2x + 3 + 4x - 5 Simplify:

7
1. 2x + 3 + 4x - 5 Simplify: zero = 6x - 2

8
2. x - 2x - 4 - 2 Simplify:

9
2. x - 2x - 4 - 2 Simplify: zero = -x - 6

10
3. 3 (x - 1) Simplify: = 3x - 3 How could you get this answer without using algebra tiles?

11
4. -2 (x - 2) Simplify: Step 1 2 (x - 2) Step 2 The opposite

12
4. -2 (x - 2) Simplify: 2 (x - 2) -2 (x - 2) = -2x + 4 How could you get this answer without using algebra tiles?

13
-2 (x - 2) + 3 (2x + 1) = -2x + 4 + 6x + 3 = 4x + 7 Steps without algebra tiles How could you check your answer to see if it is equivalent to the original expression?

Similar presentations

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google