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saifoo.khan

  • 3 years ago

How about factoring? f(x) = 2x3 – 9x + 3.

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  1. LagrangeSon678
    • 3 years ago
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    just factor

  2. saifoo.khan
    • 3 years ago
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    LAgrange!! PLEASE help.

  3. saifoo.khan
    • 3 years ago
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    the real problem is how to find the zeros of this equation and we have to explain that in steps.

  4. saifoo.khan
    • 3 years ago
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    i mean in sentences.

  5. LagrangeSon678
    • 3 years ago
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    sentences

  6. saifoo.khan
    • 3 years ago
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    i dont need solutions, just HOW TO/

  7. LagrangeSon678
    • 3 years ago
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    I set the function to zero Then i factored and got two terms. Next i applied the zero product property and i found the roots, by that i mean that i set each term term to zero and solved for x

  8. JamesJ
    • 3 years ago
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    Are you sure it's 2x^3 – 9x + 3? The roots are nasty. but suppose they are r1, r2, r3, then of course 2x^3 – 9x + 3 = 2(x-r1)(x-r2)(x-r3)

  9. saifoo.khan
    • 3 years ago
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    Yes that's this. :/

  10. AnwarA
    • 3 years ago
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    You probably should try finding the roots by using some numerical methods, which will give you approximated values of the roots.

  11. AnwarA
    • 3 years ago
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    If I were you, I would start by plotting the polynomial to help me have a general view of the function and where the zeros might be. Then, I would use a method like Newton's method to approximate the roots.

  12. bookymb143
    • 3 years ago
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    now saifoo can do this he is smart =)

  13. AnwarA
    • 3 years ago
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    I am sure he is!

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