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7 Alg Day 9 Sept 19 Simplifying w_comments.notebook
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September 19, 2019
Algebra IThursday, September 19, 2019
Assignment Due Today:#6 pp. 4345 24,27,30,33,38,41,43,47,48,49[5053 Choose 1],56,58,[60 AND 61 Optional][6264 Choose 1]66,70,[7177 Choose 1]7880
Assignment Due Tomorrow: 7. Simplifying pp. 4951 29,[3033 Choose 1],[3437 Choose 1],[3843 Choose 1],[4651 Choose 2],[5254 Choose 1],55,[6164
7 Alg Day 9 Sept 19 Simplifying w_comments.notebook
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September 19, 2019
Assgn #6 pp. 4345 24,27,30,33,38,41,43,47,48,49[5053 Choose 1],56,58,[60 AND 61 Optional][6264 Choose 1]66,70,[7177 Choose 1]7880
7 Alg Day 9 Sept 19 Simplifying w_comments.notebook
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Simplifying expressions: Some important terms to know:• Distribution (distributive property)• Commutative Property• Associative Property• Terms• Combining like terms• Coefficient
(a)(b) = (b)(a)
7 Alg Day 9 Sept 19 Simplifying w_comments.notebook
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Distributive property:
a(b+c)=ab+acCommutative property:
a + b = b + a
7 Alg Day 9 Sept 19 Simplifying w_comments.notebook
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Associative Property: a + b + c
=(a + b) + c
=a + (b + c)
abc
=(ab)c
=a(bc)
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Combining Like Terms:
What are terms? The terms of an expression are the parts to be added or subtracted.
3x + 5y + (5xy)
In this expression, there are 3 terms underlined in red.
1 2 3
In the following expression, there are like terms. Can you combine them?
5x + 3y 2x + 8y
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12 +9 =21(How many terms? Are they like?)
(How many terms? Are they like?)
5 + 3
= 5 + 3
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Use the associative property to help do these easily.
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Coefficient is the number next to the variable.
12xvariable
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Like HW
Problems!
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