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anonymous

  • one year ago

Medal & fan Algebra help What polynomial has roots of -5, -4, and 1? x3 - 8x2 - 11x + 20 x3 - x2 + 22x + 40 x3 + x2 - 22x - 40 x3 + 8x2 + 11x - 20

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  1. anonymous
    • one year ago
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    @MeganEdward @zepdrix

  2. Nnesha
    • one year ago
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    roots are x= -5 x=-4 x=1 set each root equal to zero x = -5 (Add 5 both sides ) x+5 =0 same with other 2 roots then foil

  3. anonymous
    • one year ago
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    Thanks! <3

  4. Nnesha
    • one year ago
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    hmm got it ?? familiar with the foil method ?

  5. anonymous
    • one year ago
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    Yes, I'm familiar. So I would foil (x+5)(x+4)(x-1)?

  6. Nnesha
    • one year ago
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    right :=)

  7. anonymous
    • one year ago
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    Can I foil the first two and then foil the sum with (x-1)?

  8. Nnesha
    • one year ago
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    that would be AWESOME !

  9. anonymous
    • one year ago
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    (x^2 + 9x + 20)(x-1) and then...

  10. anonymous
    • one year ago
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    x^3 + 8x^2 +11x -20 ??

  11. Nnesha
    • one year ago
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    perfect! :=)

  12. anonymous
    • one year ago
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    Thanks a bunch!

  13. Nnesha
    • one year ago
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    np great job 2 u !! :=)

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