1. Worksheet Key
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2. Worksheet Key
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3. Worksheet Key
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4. Worksheet Key
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5. 2/27/ :04 PM
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6. Let’s go Over the Quiz
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7. Party Time
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8. More Multiplying Polynomials
Section 9.3
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9. Review (using FOIL) Multiply, 2/27/2019 10:04 PM
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10. 9.2 - Multiplying Polynomials
Review
Multiply (x – 3)(x + 4)
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9.2 - Multiplying Polynomials

11. Your Turn Multiply, 2(x + 6)(2x – 1) 2/27/2019 10:04 PM
9.3 - Special Products

12. Square of a Binomial Pattern
When a binomial is squared, rewrite the problem with two binomials
FOIL correctly
Combine like terms
DO NOT DISTRIBUTE the exponents
(a + b)2 = a2 + 2ab + b2
(a – b)2 = a2 – 2ab + b2
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13. Special Cases
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14. Example 1
Multiply (x + 2)2
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15. Example 1
Multiply (x + 2)2
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16. Example 1 Check Multiply (x + 2)2 2/27/2019 10:04 PM
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17. DO NOT FORGET THE MIDDLE!
Special Cases
DO NOT FORGET THE MIDDLE!
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18. Example 2
Multiply (x – 4)2
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19. Your Turn
Multiply (x – 9)2
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20. Example 3
Multiply (3x + 1)2
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21. Example 4
Multiply (4x – 5)2
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22. Your Turn
Multiply (2x + 5)2
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23. Example 5
Multiply (4x – y)2
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24. Example 6 Multiply (3m + 2n)2 2/27/2019 10:04 PM
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25. Your Turn Multiply (3x – 7y)2 2/27/2019 10:04 PM
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26. Sum and Differences of Squares
When a binomial is squared, rewrite the problem with two binomials
FOIL correctly
Combine like terms
(a + b) (a – b) = a2 – b2
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27. Example 7 Multiply (x + 5)(x – 5) 2/27/2019 10:04 PM
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28. Example 8 Multiply (5x + 3)(5x – 3) 2/27/2019 10:04 PM
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29. Your Turn Multiply (4x + 3y)(4x – 3y) 2/27/2019 10:04 PM
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30. Example 9
Find the perimeter and area of a square which sides are 3x – 2.
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31. Your Turn
Find the perimeter and area of a square which sides are 5x – 3.
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