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WARM UP 

WARM UP . Distributing polynomials my multiplying 1. x(2x 2 - 3x+9) 2. 4y(-y 3 - 2y-1) 3. z 2 (4z 4 +11z 2 -6) 4. –a 5 (-9a 2 +5a+13) 5. (x+2)(x-3) *hint use a table*. Lesson 9-7 MULTIPLYING POLYNOMIALS-FOIL METHOD. BY BOOMER DOHN & KENNY MASSA. The F.O.I.L method. F~ First term

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WARM UP 

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  1. WARM UP  Distributing polynomials my multiplying 1. x(2x2- 3x+9) 2. 4y(-y3- 2y-1) 3. z2(4z4+11z2-6) 4. –a5(-9a2+5a+13) 5. (x+2)(x-3) *hint use a table*

  2. Lesson 9-7MULTIPLYING POLYNOMIALS-FOIL METHOD BY BOOMER DOHN& KENNY MASSA

  3. The F.O.I.L method • F~ First term • O~ Outer term • I~ inner term • L~ last term

  4. first • First - multiply the first term in each set of parenthesis (2x+3)(4x+1)

  5. Outer/ outside • Outside - multiply the two terms on the outside: • (2x+3)(4x+1) • Got problem from internet

  6. Inside/ inner • Inside-multiply both of the inside term: (2x+3)(4x+1)

  7. last • Last - multiply the last term in each set of parenthesis: • (2x+3)(4x+1) • just add like terms.

  8. Examples • (2r-1)(5r+3) (4x-5)(12x-7)

  9. Practice Problems 1.(7a-2)(3a-4) 2. (4m+9)(2m+7) 3.(8t+11)(6t-1) 4. (8z+3)(5z+4) 5.(y+6)(y-5)

  10. For more help… • Visit--- • http://www.freemathhelp.com/using-foil.html • Also in chapter 9-7 on pages 536-541

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