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Published byNancy Curtis Modified over 4 years ago

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Multiplying Polynomials

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1. Use FOIL method if you have 2 Binomials. ◦ F (first) O (outer) I (inner) L (last) 2. Use Distribution otherwise. Remember to combine any like terms and write answer in descending order.

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1. 2x 3 (4x 2 – 3x + 2) 2. (6x + 1)(4x+ 7) 3. (x – 9)(4x + 9) 4. (2x + 6) 2 5. (2x – 1)(x 3 – 3x 2 + 4x – 2)

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Two binomials are conjugates if they are the sum and difference of the same two terms. Find the conjugate of each: 1. -x + 5 2. 3x – 9 3. 2x 2 + 10y

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(a + b)(a – b) = (a + b)(a – b) = a 2 - b 2 1) (2x + 4)(2x – 4) = 2) [(y + 3) + z][(y + 3) – z] =

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1. Find (f·g)(x) 2. Find (f·g)(3) 3. Find (f·g)(-1)

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