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semaameya

  • 3 years ago

what is the x intercept of y=1+(1/x)+(1/x^2)

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  1. freewilly922
    • 3 years ago
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    Is the x intercept when y = 0?

  2. semaameya
    • 3 years ago
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    Yess!

  3. freewilly922
    • 3 years ago
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    Then shouldn't you just try to solve \[0=1 + \frac{1}{x}+\frac{1}{x^2}\]?

  4. semaameya
    • 3 years ago
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    I did & i dont think theres a defined answer so i was just checking if i did something wrong

  5. freewilly922
    • 3 years ago
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    Ah, did you check the discriminant to see if it was positive/zero/negative?

  6. cwrw238
    • 3 years ago
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    multiply each term by x^2

  7. cwrw238
    • 3 years ago
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    giving x^2 + x + 1 = 0 and check discriminant as freewill said

  8. cwrw238
    • 3 years ago
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    yup

  9. semaameya
    • 3 years ago
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    alright thanks.

  10. cwrw238
    • 3 years ago
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    the roots are non-real (complex) numbers

  11. cwrw238
    • 3 years ago
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    yw

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