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anonymous

  • 5 years ago

Find the polynomial function with roots 1, 7, and –3 of multiplicity 2 help please:)

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  1. anonymous
    • 5 years ago
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    -3 has multiplicity two means \[(x+3)^2\] is a factor

  2. anonymous
    • 5 years ago
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    so write \[(x-1)(x-7)(x+3)^2\] and then if you have to multiply out, or cheat

  3. anonymous
    • 5 years ago
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    http://www.wolframalpha.com/input/?i=%28x-1%29%28x-7%29%28x%2B3%29^2 answer you want says "expanded form"

  4. anonymous
    • 5 years ago
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    multiply all of those together so it would be 3x +1?

  5. phi
    • 5 years ago
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    It is going to be a 4th degree polynomial (i.e. messy!) Here is how to start http://www.khanacademy.org/video/multiplying-polynomials1?playlist=Algebra+I+Worked+Examples

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