document.write( "Question 408664: 8z^3-64=0\r
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Algebra.Com's Answer #287818 by richard1234(7193) $\"\"$ $\"About$

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This is equivalent to $\"z%5E3+=+8\"$ . On the complex plane, $\"z%5E3+=+8\"$ has three roots of unity, $\"2\"$ , $\"2%2Aomega\"$ , and $\"2%2A%28omega%29%5E2\"$ where $\"omega+=+e%5E%28i%2A2pi%2F3%29+=+-1%2F2+%2B+i%2Asqrt%283%29%2F2\"$ . \n" ); document.write( "

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