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elainepls

factors of the polynomial x^2+5x-14

  • 9 months ago
  • 9 months ago

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  1. SAValkyrie
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    To find the factors of the polynomial x^2+5x-14, you have to factor the equation first. Use crisscross method or the australian method to do this. Do you know how to do this?

    • 9 months ago
  2. elainepls
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    no :(

    • 9 months ago
  3. SAValkyrie
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    I cannot give you the answer right away due to the code of conduct. So the only way i can do this is to help you step by step.

    • 9 months ago
  4. SAValkyrie
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    so you want to find two numbers when you add them it becomes +5 and when you multiply it becomes -14

    • 9 months ago
  5. SnuggieLad
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    Do you understand that explanation?

    • 9 months ago
  6. SnuggieLad
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    Pardon the name of the site but it explains it well... http://www.dummies.com/how-to/content/how-to-factor-a-polynomial-expression.html The answer is (x+7)(x-2) But I don't want to give it to you without explaining it. Don't forget to fan and best the answers!

    • 9 months ago
  7. gupta101
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    (x+7)(x-2)

    • 9 months ago
  8. SnuggieLad
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    Exactly what I said @gupta101

    • 9 months ago
  9. Hero
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    And here's the actual explanation for it: 1. Find two numbers that add to get 5, but multiply to get -14. In other words: a + b = 5 ab = -14 And you figure out that a = 7, b = -2 works for both. Then you perform the following steps: x^2+5x-14 x^2 + 7x - 2x -2*7 x(x + 7) -2(x + 7) (x + 7)(x - 2)

    • 9 months ago
  10. SnuggieLad
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    Well put hero.

    • 9 months ago
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