1. 2.3 simplifying variable expressions September 09, 2011
Bellwork
Simplify
5(b + 4)
­3(2x + 5)
HW pg. 78 #2­32 evens 1

2. 2.3 simplifying variable expressions September 09, 2011
term ­ a number or the product of a number and variables
constant ­ term that has no variables
coefficient ­ terms that have identical variables
like terms ­ number in front of the variable (multiplies)
HW pg. 78 #2­32 evens 2

3. 2.3 simplifying variable expressions September 09, 2011
Name the coefficients, the like terms, and the constants in
3m ­ 2n + n ­ 4
Coefficients Like Terms Constants
HW pg. 78 #2­32 evens 3

4. 2.3 simplifying variable expressions September 09, 2011
Name the coefficients, the like terms, and the constants in
6 + 2s + 4s
HW pg. 78 #2­32 evens 4

5. 2.3 simplifying variable expressions September 09, 2011
Simplify ­ Combine Like Terms
Simplify 2x + 4 +3x
5y + y ­4m ­ 9m
HW pg. 78 #2­32 evens 5

6. 2.3 simplifying variable expressions September 09, 2011
When we justify an answer (like we did with our properties)
that is called deductive reasoning.
Simplify 4g + 3(3 + g). Justify each step.
HW pg. 78 #2­32 evens 6

7. 2.3 simplifying variable expressions September 09, 2011
HW pg. 78 # 2­32 evens
HW pg. 78 #2­32 evens 7

8. 2.3 simplifying variable expressions September 09, 2011
Objective ­ simplify like terms ­ day 2
Agenda Warm Up
1.
2. Name the like terms,
coefficients and constants
3.
4. 9m + 2r ­ 2m + r
HW pg. 78 #2­32 evens 8

9. 2.3 simplifying variable expressions September 09, 2011
a + 2a + 3a ­ 4a
HW pg. 78 #2­32 evens 9

10. 2.3 simplifying variable expressions September 09, 2011
3(2n +4) ­ 2(3n + 6)
HW pg. 78 #2­32 evens 10

11. 2.3 simplifying variable expressions September 09, 2011
Banking WS
HW pg. 78 #2­32 evens 11