michaelkcutidioc michaelkcutidioc
  • 24-06-2016
  • Mathematics
contestada

the value -1 is a lower bound for the zeros of the function shown below F(x)=x^4+x^3-11x^2-9x+18

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caylus
caylus caylus
  • 24-06-2016
Hello,

f(x)=x^4+x^3-11x²-9x+18=(x+2)(x+3)(x-3)(x-1)

-3 is the lowest zero.

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