Simplifying Expressions

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Simplifying Expressions
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Essential Question What properties do I need
to know in order to simplify and evaluate
algebraic expressions. Lesson Objective To
simplify and evaluate algebraic
expressions.M71Ab(Feed the babies)
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Lets look at some vocabulary

• A term is a single number, a single variable, or
  the product of s and variables such as

-5xyz
35
3c
-2c4
2c
d2
d
5b
2a
4
Lets look at some vocabulary

• An algebraic expression is a collection of
  numbers, variables, and operations

35 2a
3c 2
7c - 2c4
2c 5c
5d2 2d2
2(a 15)
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Lets look at some vocabulary

• A coefficient is the number multiplying the
  variable. A variable standing alone is said to
  have a coefficient of 1.

-6xyz
12a
3c
k
2c4
5c
15q
d2
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Lets look at some vocabulary
Like terms are terms with same variable raised to
the same power.
12a 3a
k 2k
3c2c
2c4 c4
2d2 d2
15a
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When combining like terms.

• the coefficient changes

5n 2n 8 n 7
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Lets Try More Problems Together
4 6y 8y 15 y2
12g2 18 6g2 3 5g
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You try
Work with a partner to simplify each expression.
In other words, combine like terms!!!
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OPENER / SUMMARIZER

• S -
• I I must remember to distribute to all terms.
• M
• P
• L Like terms have the same var. raised to the
  same power
• I
• F
• Y