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= **Chapter 9: Polynomials** = Preview: [|Chapter 9 Preview 1011.pdf]

Wikis Summaries:
9-1: Olivia G. and Allison M. 9-2: Denae D. and Anthony S.  9-3: Keller H. and Sawyer R.  9-4: Kailyn H. and Abi M.  9-5: Tyler E. and Hunter N.  9-6: Tyler E. (Bonus) and Olivia G. (Bonus) 9-7: Sarah L. (Bonus) and Allison M. (Bonus) 9-8: Brandy C. (Bonus) and Denae D. (Bonus)

**9-1: Add and Subtract Polynomials**
Notes: [|Section 9-1 Student 1011.pdf] media type="custom" key="9310876"

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**Student Summaries:** This lesson talks about adding and subtracting polynomials. We learned how to rewrite polynomials in standard form. This means that the terms are ordered from the greatest to the least power of the variables. The book calls this descending order. Monomials have only one term, while binomials have two terms and trinomials have three terms. Allison

In this lesson you learn about monomials, polynomials, binomials and trinomials. A monomial has one term, binomials have 2 terms and trinomials have 3 terms. In adding and subtracting polynomials, you combine the like terms together. Olivia

9-2: Multiply Monomials
Notes: [|Section 9-2 Student 1011.pdf] media type="custom" key="9319040"

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**Student Summaries:** This Section is on Multiplying Monomials in this section you have to combine like terms and then add them together and then distribute the exponents. If the terms are not alike you can not add or subtract. -Denae D.

9-3: Divide by a Monomial
Notes: [|Section 9-3 Student 1011.pdf] media type="custom" key="9351422" View the lesson:
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9-4: Multiply a Polynomial by a Monomial
Notes: [|Section 9-4 Student 1011.pdf] media type="custom" key="9366418" View the lesson:
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This section is on multiplying a polynomial by a monomial. To do this you use distribution. Distribute the number in front of everything inside the parentheses. Multiply the coefficients first, then the variables in alphabetical order. - Kailyn H.
 * Student Summaries: **

Section 9-4 we multiplied a polynomial by a monomial like we did in previous sections. We solved these problems by distributing. We multiply the coefficients first and then the variables in alphabetical order. Example: 2x(2x+y) Abi M.

9-5: Multiply Binomials
Notes: [|Section 9-5 Student 1011.pdf] media type="custom" key="9380878"

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**Student Summaries:**

to multiply binomials, you have to use the FOIL system to use proper order. FOIL stands for First,Inner,Outer,Last. After this you have to use the distributive property to find your answer. You have to combine like terms as well. The last step is putting the answer in alphabetical order starting with the highest exponent, then working your way down. Tyler E.

9-6: Problem Solving Skills: Work Backwards
Notes: [|Section 9-6 Student 1011.pdf] media type="custom" key="9391264" View the lesson:
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To solve problems by working backwards you must know when to divide, multiply, add, and subtract, all from the word clues in the problem. For example when it says a number is doubled, that means it is multiplied by 2. When working backwards you get the answer and have to find another number in the equation. Tyler E.
 * Student Summaries:**

9-7: Factoring Using the Greatest Common Factor (GCF)
Notes: [|Section 9-7 Student 1011.pdf] media type="custom" key="9391276"

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**Student Summaries: __Lesson 9-7__** deals with factoring polynomials using the greatest common factor. //**Factoring**- is breaking down a polynomial into two things that multiply to get that polynomial//. If a polynomial has more than one term you can see if any of the other terms have anything in common. Then you need to start calculating the Greatest Common Factor (GCF). Lastly, you use backwards distribution to get your final answer. By: Sarah L. & Allison M.
 * Example**: 5ab-5bc=5b(a-c)

9-8: Perfect Squares and Differences of Squares
Notes: [|Section 9-8 Student 1011.pdf] media type="custom" key="9391296"

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**Student Summaries:** In this lesson we talked about how to get a trinomail factored into a binomial squared which that procces is called perfect square trinomial. We also talked about how to take a polynomial and factor it out into two binomials which would have the same terms but different signs in between that is called the difference of two squares. Factoring is just the process of finding the greatest common factor and then seeing what you can take out of each term by dividing it.-brandy c.

= **Calendar** = media type="custom" key="9310882"