steve816
  • steve816
Can this equation be factored? 3x^3-5x^2+2x+1
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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welshfella
  • welshfella
by rational root theorem there might be roots of +-1 , -/+ 3 try seeing if f(1) , f(-1) , f(3) or f(-3) = 0
welshfella
  • welshfella
f(1) andf (-1) do not = 0
steve816
  • steve816
Can you please explain what the rational root theorem is?

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welshfella
  • welshfella
multiply coefficient of x^3 and x^0 - in this case its 3 and 1 - the roots could be factors of 3 ( including 1)
welshfella
  • welshfella
but neither f(3) or f(-3) are roots either
steve816
  • steve816
Oh I see, so this equation cannot be simplified at all.
welshfella
  • welshfella
oh hold on i made an error calculating f(-3)...
welshfella
  • welshfella
no f(-3) not = 0 either
welshfella
  • welshfella
no this can't be factored
steve816
  • steve816
Alright thanks!
welshfella
  • welshfella
yw

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