Download presentation

Presentation is loading. Please wait.

Published byPatrick Douglas Modified over 3 years ago

1
Bell Work 4m 8m 5m 12x 5 6x Write an expression in simplest form that will solve for the perimeter of each of the triangles. 6x +5 +12x 18x + 5 8m +4m +5m 17m

2
The Distributive Property and Combining Like Terms

4
= -3(x) + (-3)(4) + (-3)(4) = -3x + (-12) + (-12) -2a + 4a + (-3) + 8 = 2a + 5 -2a – 3 + 4a + 8 -3(x + 4) -3(x + 4) Remember this… #1 #2 Standard Form Standard Form

5
1. Simplify 6(5 + n) – 2n +3y. Distributive Property. Multiply. 6(5 + n) – 2n + 3y 30 + 6n + (– 2n) + 3y 6(5) + 6(n) +(– 2n) + 3y 30 + 4n +3y Combine coefficients 6 + (– 2) = 4. 2. Simplify 3(c + 7) – c. Distributive Property. Multiply. 3(c + 7) – c 3c + 21 + (–1c) 3(c) + 3(7) + (–1c) 2c + 21 Combine coefficients 3 + (– 1) = 2. Now we will use the distributive property first, then combine like terms second.

6
3. 4(5x + 2) 10x 4. -6(x - 5) + 3x Simplify. Distributive Property. (Keep Change Change) Multiply. Combine coefficients 20 - 10 = 10. 4(5x) + 4(2) + (– 10x) 20x + 8 + (– 10x) 10x + 8 Distributive Property. Multiply. Keep Change Change -6(x) – (-6)(5) + 3x -6x – (-30) + 3x -3x + 30 -6x + 30 + 3x Combine coefficients -6 + 3 = -3.

7
+ (-6a) + (-6a) + (-24) + (-24) -4a -4a -10a -10a + (-24) -4a – 3(2a + 8) Try this… -4a +(-3)(2a + 8)

8
How do I check my work? Verify that your expression is equivalent to the one given by evaluating each expression using substitution. Ex. Write in standard form 2(3a + 4) – 2 2(3a) + 2 (4) – 2 6a + 8 – 2 6a + 6 Now substitute a number into the expanded form and the standard form and see if you get the same answer. Lets use a = 2 Standard Expanded 6a + 6 2(3a + 4) – 2 6(2) + 6 12+ 6 18 2(3 2 + 4) – 2 Use order of operations! 2 (6 + 4) – 2 Parentheses first 2 (10) – 2 20 – 2 18

9
Add + Subtract - Multiply x Divide Please Excuse My Dear Aunt Sally P E MDMD ASAS Parentheses ( ) Exponents 4 3 Do multiplication and division 3rd, from left to right. Do addition and subtraction 4th, from left to right. Review

10
You try:

12
PRACTICE

Similar presentations

© 2019 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google