I have a couple of questions that i cant figure out to save myself =/

1.these are expressing in the form a+ib

i got z= -1/14 + i/14

2.

didnt know how to do this.

3. (where zcon is the conjugate of z)

okay and theres:

" is the root of the equation

find the other root and the value of k."

now i assume you use the but im not sure.

im sorry theres so many but i need the help.

also if this isnt the correct forum also sorry as there was a similar problem listed here too