$$(3-3i)(-4+4 \sqrt{ 3 } i)/ \frac{ 1 }{ 2 } -3i$$
$\sqrt{3}\left(24+24i\right)+\left(-24+21i\right)\approx 17.569219382+62.569219382i$
$24 {(\sqrt{3} - 1)} = 17.569219382$
