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hba

  • 3 years ago

If x-1,x+2 and x+1 are all factors of a polynomial P(x) of degree 3,which of the following must also ve a factor of P(x) ? 1)x^2+3x+2 2)x^2-1 3)x^2+x-2 A)3 only B)2 only C)1 only D) all three are factors.

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  1. tcarroll010
    • 3 years ago
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    factor each of a, b, and c to see what factor them. That will give you your answer, because if the factors of any or all of a, b, and/or c are the ones in the problem, then that selection is also a factor of P.

  2. hba
    • 3 years ago
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    I only get 30 seconds per question,I dont think i will be able to do it in such a short time.

  3. tcarroll010
    • 3 years ago
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    So, start with selection 1) . What are its factors?

  4. hba
    • 3 years ago
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    For the first one, (x+1) (x+2)

  5. tcarroll010
    • 3 years ago
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    Good!, so 1) is a factor of P. And just check 2) and 3).

  6. hba
    • 3 years ago
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    For the second one , (x+1) (x-1)

  7. tcarroll010
    • 3 years ago
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    Good! So, 2) is a factor. Hint: if 2) works, then 3) automatically works because there is no selection for only 1) and 2).

  8. hba
    • 3 years ago
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    For the third one, (x+2) (x-1)

  9. hba
    • 3 years ago
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    So you can clearly see that All three are factors @tcarroll010 Understood!

  10. tcarroll010
    • 3 years ago
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    Excellent!

  11. hba
    • 3 years ago
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    Thanksssss Yuuuu ZZ :D

  12. tcarroll010
    • 3 years ago
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    Great job!

  13. hba
    • 3 years ago
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    Yuu Great Techesss the Mathsss.

  14. hba
    • 3 years ago
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    You are Englished :D

  15. tcarroll010
    • 3 years ago
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    thxxxxxxx muccccchhhhhh

  16. hba
    • 3 years ago
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    English like an elephant egg.

  17. hba
    • 3 years ago
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    Difficult the sunn of the bacha.

  18. hba
    • 3 years ago
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    @Zarkon I hope i am not in trouble :D

  19. Zarkon
    • 3 years ago
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    only a little ;)

  20. hba
    • 3 years ago
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    Sorry.

  21. hba
    • 3 years ago
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    Just give me One last chance.

  22. Zarkon
    • 3 years ago
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    I'll think about it :)

  23. hba
    • 3 years ago
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    Omg,I am so dead :(

  24. Zarkon
    • 3 years ago
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    lol

  25. hba
    • 3 years ago
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    Haha :D

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