1. Lesson 14.notebook September 10, 2012
Lesson 1.4:
*Distributive Property >(b + c) = ab + ac
a
a(b c) = ab ac
ex> 3(2 + 5) =
ex>4(9 7) =
*like terms terms that contain the same variables, with corresponding variables
having the same power
5x2 + 2x 4 6a2 + a2 + 2a
3 terms like terms unlike terms
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2. Lesson 14.notebook September 10, 2012
*The coefficient of a term is the numerical factor.
ex> 6ab x2 y
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coefficient is:
*An expression is in "simplest form" when it contains
no like terms or parentheses.
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3. Lesson 14.notebook September 10, 2012
Lesson 1.4 examples:
Use the distributive property to rewrite each expression. Then evaluate.
A) 6(4 + 5)
B) (2 + 1)7
Use the distributive property to rewrite each expression. Then simplify.
C) 4(x + 2)
D) (2x 6)3
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4. Lesson 14.notebook September 10, 2012
Simplify each expression. If not possible, write simplified.
E) 13r + 5r
F) 5x2 + 3x + 3x2
G) 4(fg + 3g) + 5g
H) b2 + 13ab + 13a2
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