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my problem is that im unable to calculate the absolute value of the following function:

[tex]f(z)=\bar{z}(z-2)-2\Re z[/tex] wherase [tex] z=x+iy [/tex]

What i did was:

[tex]=|z|^2-2\bar{z}-2\Re z=x^2+y^2-2x+2iy-2x=x^2+y^2+2yi-4x[/tex]

and how should i calculate the absoulte value of this function??

Because i should find all maxima and minima of |f(x)|, which is not so difficult, i hope after i got the abs()!

Can anyone help me?

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# Homework Help: Maxima, Minima complex function

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