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babydoll332 Group Title

Use the Factor Theorem to determine whether the first polynomial is a factor of the second polynomial. x - 5; 3x^2 + 7x + 40

  • one year ago
  • one year ago

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  1. babydoll332 Group Title
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    YES right?

    • one year ago
  2. zordoloom Group Title
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    x-5 is not a factor

    • one year ago
  3. babydoll332 Group Title
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    so no?

    • one year ago
  4. zordoloom Group Title
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    nope

    • one year ago
  5. ZeHanz Group Title
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    x-5 is a factor if substituting 5 in the second gives 0: 3*5² + 7*5 + 40 = 75 + 35 + 40 = 150 <> 0, so NO.

    • one year ago
  6. RadEn Group Title
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    this cant be factored check the value of D (discriminant) = b^2-4ac if D < 0, it has complex roots

    • one year ago
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