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Multiplying Polynomials This PowerPoint will show you two methods that will multiply polynomials Brandon Young

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What are Polynomials? A polynomial is made up of terms that are only added, subtracted, or multiplied. It can have constants, variables, and exponents. Polynomials can have many terms.

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Multiply. (2x + 3)(5x + 8) Using the Distributive property, multiply 2x(5x + 8) + 3(5x + 8). 10x x + 15x + 24 Combine like terms. 10x x + 24 Another option is called the FOIL method.

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FOIL F irst terms O uter terms I nner terms L ast terms

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Foil Method The FOIL method can be used when you multiply 2 binomials. It tells you which terms to multiply. Use the FOIL method to multiply these binomials: (y + 3)(y + 7).

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(y + 3)(y + 7). F tells you to multiply the FIRST terms of each binomial. y 2

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(y + 3)(y + 7). O tells you to multiply the OUTER terms of each binomial. y2 + 7y

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(y + 3)(y + 7). I tells you to multiply the INNER terms of each binomial. y2 + 7y + 3y

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Monomial times a Binomial x(x+4) Multiply each term in the parentheses by x = x 2 +4x The problem was completed using the distributive property.

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Monomial times a Trinomial 2x(x 2 +3x+4) Multiply the Monomial: 2x by the Trinomial: x 2 +3x+4 =2x 3 +6x 2 +8x

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(y + 3)(y + 7). L tells you to multiply the LAST terms of each binomial. y2 + 7y + 3y + 21 Combine like terms. y2 + 10y + 21 is your Final Answer.

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Sources html-http://www.mathsisfun.com/algebra/polynomials. html- px h/algebra/AV3/multMon.htm

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