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anonymous

  • 5 years ago

find the x intercept of f(x)= 2x^3-15x^2+24x+19?

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  1. anonymous
    • 5 years ago
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    \[1/2 (5-(3 3^(2/3))/(11-2 \sqrt(10))^(1/3)-(3 (11-2 \sqrt(10)))^(1/3)) \]

  2. anonymous
    • 5 years ago
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    x~~-0.571767

  3. anonymous
    • 5 years ago
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    x = 1/2 (5-(3 3^(2/3))/(11-2 sqrt(10))^(1/3)-(3 (11-2 sqrt(10)))^(1/3))

  4. anonymous
    • 5 years ago
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    Got it?

  5. anonymous
    • 5 years ago
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    just tried, but i still dont get it.. what is the formula you used?

  6. anonymous
    • 5 years ago
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    http://en.wikipedia.org/wiki/Horner_scheme#Polynomial_root_finding

  7. anonymous
    • 5 years ago
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    This link will take you directly to the root finding portion, no need to scroll any further

  8. anonymous
    • 5 years ago
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    alright, thanks a lot!

  9. anonymous
    • 5 years ago
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    You are welcome

  10. anonymous
    • 5 years ago
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    By the way, whats your present level?

  11. anonymous
    • 5 years ago
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    I mean is horner scheme in the scope of your syllabus

  12. anonymous
    • 5 years ago
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    No its not.. but i ll try find some other websites to guide me through.. thanks for the help anyway!

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spraguer (Moderator)
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