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Pg. 474 (4, 9, 12)
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Multiplying Polynomials
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SWBAT multiply binomials using the FOIL method. SWBAT multiply polynomials using the distributive property. Students will look for and make use of structure.
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WordsTo multiply two binomials, find the sum of the products of F the first terms, O the outside terms, I the inside terms, and L the last terms.
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Find each product: a) (2x + 3)(x + 5) b) (x – 2)(3x + 4)
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a) (3m + 4)(m + 5) b) (5y – 2)(y + 8)
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Find each product: a)(2y – 7)(3y + 5) b) (4a – 5)(2a – 9)
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a) (x + 3)(x – 4) b) (4b – 5)(3b + 2) c) (2y – 5)(y – 6) d) (5a + 2)(3a – 4) Notice that when two linear expression are multiplied, the result is a quadratic (expression with a degree of 2). When three linear expressions are multiplied, the result is a cubic (degree of 3).
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Guided Practice #3: (pg. 482)
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Find each product: a) (6x + 5)(2x 2 – 3x – 5) b) (2y 2 + 3y – 1)(3y 2 – 5y + 2)
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a) (3x – 5)(2x 2 + 7x – 8) b) (m 2 + 2m – 3)(4m 2 – 7m + 5)
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3 Things you Learned 2 Things you Understand 1 Thing that still Confuses you. Homework: Chapter 8.3 Skills Practice in WB EXTRA PRACTICE!! Pg. 483; 13-31 odds
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