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Ladyalice25

  • 3 years ago

1. solve the following inequality. write your solution in interval notation. (x+3)/(x-3)<0 2. find all the zeros of the following polynomial. write the polynomial in factor form. f(x)=x^4+3x^2-40

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  1. anonymous
    • 3 years ago
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    first one has zeros at \(-3\) and \(3\) it will be negative between them, positive outside you want where it is negative, your answer is \(-3<x<3\)

  2. anonymous
    • 3 years ago
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    for the scone one, factor as \((x^2-5)(x^2+8)\) and then solve

  3. tkhunny
    • 3 years ago
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    Hmmm... The first one does not have a zero at x = 3, but that may make no difference for the eventual solution.

  4. anonymous
    • 3 years ago
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    yes that is true, i should have said "the factors have a zero of -3 and 3" which would have been a better way to say it (since the first thing i said was wrong)

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