How to plot this complex polynomial?

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I have tried using ti-89, ti-nspire and wolfram alpha, but none have given me a plot of this complex polynomial. I admit that I have may not inputted the formula correctly in wolfram alpha.

The polynomial:

$$ x^2 -ix+3$$ where $i$ is $\sqrt{-1}$.

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You can use domain coloring:

enter image description here

The two roots can be seen clearly: they are the points having a rainbow around it.