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steve816

  • one year ago

Can this equation be factored? 3x^3-5x^2+2x+1

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  1. welshfella
    • one year ago
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    by rational root theorem there might be roots of +-1 , -/+ 3 try seeing if f(1) , f(-1) , f(3) or f(-3) = 0

  2. welshfella
    • one year ago
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    f(1) andf (-1) do not = 0

  3. steve816
    • one year ago
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    Can you please explain what the rational root theorem is?

  4. welshfella
    • one year ago
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    multiply coefficient of x^3 and x^0 - in this case its 3 and 1 - the roots could be factors of 3 ( including 1)

  5. welshfella
    • one year ago
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    but neither f(3) or f(-3) are roots either

  6. steve816
    • one year ago
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    Oh I see, so this equation cannot be simplified at all.

  7. welshfella
    • one year ago
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    oh hold on i made an error calculating f(-3)...

  8. welshfella
    • one year ago
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    no f(-3) not = 0 either

  9. welshfella
    • one year ago
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    no this can't be factored

  10. steve816
    • one year ago
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    Alright thanks!

  11. welshfella
    • one year ago
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    yw

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