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Multiplying PolynomialsPowerPoint Presentation

Multiplying Polynomials

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Multiplying Polynomials

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Multiplying Polynomials

Mrs. Reynolds

2/17/13

- When multiplying monomials take the following steps:
- Multiply the constants.
- Multiply the variables with the same base.
Ex.

Constants Variables multiplied by the same base

- To multiply a polynomial by a monomial, distribute the monomial to each term in the polynomial.
- Example:

- http://www.youtube.com/watch?v=nI-7On2adTs

- Use the distributive property to multiply polynomials.

- We can multiply them in any order so long as each of the first two terms gets multiplied by each of the second two terms.
- But there is a handy way to help us remember to multiply each term called "FOIL".
- It stands for "Firsts, Outers, Inners, Lasts":
- So you multiply the "Firsts" (the first terms of both polynomials), then the "Outers", etc.

- https://www.youtube.com/watch?v=MG-c7NWFS8U
- https://www.youtube.com/watch?v=G8l21bJSEqE

- When FOIL doesn’t work!
- Steps: