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andee Group Title

What are the real or imaginary solutions of the polynomial equation? x3 – 8 =0

  • one year ago
  • one year ago

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  1. Stiwan Group Title
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    well, what you've got here is \[x^3 = 8\] so x equals 2. The solution is unique, so there is no other solution

    • one year ago
  2. Jemurray3 Group Title
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    That's not true, there are two complex solutions as well...

    • one year ago
  3. Stiwan Group Title
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    sorry, of course

    • one year ago
  4. T0mmy Group Title
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    Sure the question is right?

    • one year ago
  5. T0mmy Group Title
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    Is x3 == 3x??

    • one year ago
  6. Jemurray3 Group Title
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    Perfectly valid question. Use the difference of cubes formula provided above by @Hero and then use the quadratic formula on the second part to determine the two complex roots.

    • one year ago
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