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court12345

  • 3 years ago

How do you find the only zero of: F(x)=2x^3+x-5?

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  1. satellite73
    • 3 years ago
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    graphing calculator? i would cheat http://www.wolframalpha.com/input/?i=2x%5E3%2Bx-5

  2. satellite73
    • 3 years ago
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    you will not find it using algebra, that is for sure. there is a formula for third degree polynomials but it is long and cumbersome

  3. court12345
    • 3 years ago
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    Hmm, okay. I'll have to find it then.

  4. FreeTrader
    • 3 years ago
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    Solve the function for F(x) = 0. \[F(x)=2x^3+x-5 = 0\]

  5. FreeTrader
    • 3 years ago
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    I'd usually enter it into my graphing calculator, then use the zero function to identify the crossover point on the x axis.

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