I completely forget how to do this... can someone give me a review on how to do this? For example: z=8e^(i(pi)/3) w=4e^(i(pi)/6) z+w= ? This is an example in my book but no steps are given for this, the answer they give is (4 + 2sqrt) + (4sqrt + 2) i I have virtually no memory of this... I'd greatly appreciate any guidance I can get with this. Thanks!