Solve z^2 = -33 + 56i.
It is explained here quite nicely
https://www.google.com/search?q=How+do+I+find+the+square+root+of+a+complx+number&rlz=1C1CHBF_enAU776AU776&oq=How+do+I+find+the+square+root+of+a+complx+number&aqs=chrome..69i57j33.13486j0j7&sourceid=chrome&ie=UTF-8#kpvalbx=_YEg6X73ZHIjbrQH2tKu4Dg41
Work through the youtube example first
then
do the same for your own question.
