Hello

(This may be placed in the wrong part of this forum, so please move it if thats the case.)

I have just start to read math analysis 1 and i have some problems to understand, so i ask you for some help.

All solution to:

(1 + i)z^{2}− (6 + 4i)z + 9 + 7i = 0,

All solutions to:

(z + 1 + 2i)^{3}= 27i

If someone can show me how to solve this, i hope i can solve my other problems

Thanks