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7.2 Distributive Law.notebook
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January 15, 2014
The Return of PolynomialsMultiply the following:
Subtract the following polynomials:
(5x2 4x + 11) (2x2 + 8x + 2)
2(4xy) 3x(3x2)
7.2 Distributive Law.notebook
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Multiplying PolynomialsWe have previously learned how to multiply and divide polynomials, but what should we do in this situation?
2(2x 3)
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Distributive Law
Rural Electricity by Kevin Dooleyhttp://flic.kr/p/7t5Auq
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January 15, 2014
Distributive Law"Distribution" means multiplication
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January 15, 2014
Distributive LawSo how would we "distribute" the 2 in this situation?
2(2x + 3)
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January 15, 2014
Distributive LawSo how would we "distribute" the 2 in this situation?
2(2x + 3)
This is also called expanding
7.2 Distributive Law.notebook
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January 15, 2014
Expand using the distributive law.
3(3x 2)
Distributive Law
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January 15, 2014
Review
a.) 2x(4xy2)
b.) 3(x 1)
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January 15, 2014
Expand using the distributive law.
3x(x + 2)
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January 15, 2014
Expand and simplify using the distributive law.
2(x2 5x + 2)
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January 15, 2014
Expand and simplify using the distributive law. (Hint: BEDMAS)
4(x + 2) + 1
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January 15, 2014
Model using an area model:
4x(4x 8)
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January 15, 2014
3(2x + 1)
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January 15, 2014
Model using algebra tiles
4x(4x 8)
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January 15, 2014
Expand and simplify using the distributive law.
4 2(w 3)
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January 15, 2014
Expand and simplify using the distributive law.2y +3(x 2y) 5x
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January 15, 2014
(5x2 4x + 11) (2x2 + 8x + 2)
Subtracting...Using Distributive Law
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January 15, 2014
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Assignment page 268Questions 2 7, 1213