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andee

  • 3 years ago

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

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  1. Stiwan
    • 3 years ago
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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

  2. Jemurray3
    • 3 years ago
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    That's not true, there are two complex solutions as well...

  3. Stiwan
    • 3 years ago
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    sorry, of course

  4. T0mmy
    • 3 years ago
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    Sure the question is right?

  5. T0mmy
    • 3 years ago
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    Is x3 == 3x??

  6. Jemurray3
    • 3 years ago
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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.

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