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college algebra, Please help!!

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use the intermediate value theorem to show that the polynomial function has a zero in the given interval.

f(x)=4x^3+3x^2-8x+7;[-5,-2]

please show all work

  • college algebra, Please help!! - ,

    f(-5) < 0
    f(-2) > 0

    somewhere in there f(c) = 0 since f(x) is continuous.

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