F=First O=Outside I=Inside L=Last

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Multiplying Polynomials Be able to use different methods to multiply two polynomials.

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Presentation transcript:

F=First O=Outside I=Inside L=Last Foil Method F=First O=Outside I=Inside L=Last

(x+7)(x+4) First= multiply the first terms in each binomial.(highlighted in blue) x2

(x+7)(x+4) Outside= multiply the the first term in the first binomial by the last term in the second binomial. (the two terms that are farthest apart) 4x

(x+7)(x+4) Inside= multiply the last term in the first binomial by the first term in the second binomial.( the terms that are closest together) 7x

(x+7)(x+4) Last= multiply the last terms in each binomial. (highlighted in red) 28

(x+7)(x+4) Answer: x2+4x+7x+28 Combine like terms x2+11x+28

(x+7)(x+4) First= multiply the first terms in each binomial.(highlighted in blue) x2 Outside= multiply the the first term in the first binomial by the last term in the second binomial. (the two terms that are farthest apart) 4x Inside= multiply the last term in the first binomial by the first term in the second binomial.( the terms that are closest together) 7x Last= multiply the last terms in each binomial. (highlighted in red) 28 Answer: x2+4x+7x+28 Combine like terms x2+11x+28