Hi

How would i do the following question:

Find the roots of the equation:

This is what i have done:

, , ,

, , ,

P.S

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- November 14th 2010, 03:11 AMPaymemoneyFinding the rootsof complex number
Hi

How would i do the following question:

Find the roots of the equation:

This is what i have done:

, , ,

, , ,

P.S - November 14th 2010, 03:44 AMUnknown008
I would have used the difference of two squares twice:

Then, z = 1 and -1.

For the other two complex roots, we get:

Which you should be able to solve. - November 14th 2010, 04:31 AMtonio
- November 14th 2010, 06:21 AMHallsofIvy
This isn't an equation. I suppose you mean

Quote:

This is what i have done:

, , ,

**are**the fourth roots- you have already solved the problem at this point:

and

, , ,

Quote:

, , ,

P.S

- November 14th 2010, 06:24 AMHallsofIvy
- November 14th 2010, 06:30 AMUnknown008
- November 14th 2010, 11:48 AMPaymemoney
yes my bad, its meant to be srry for the confusion