Start with the hint you were given: Restate the complex number "z" in it's generic "a + bi" form. Use this to create an expression for the conjugate...
So your class hasn't yet covered this topic, and the terms in the homework exercise have not yet been defined in class? That's... a problem. We need...
Have these topics not yet been covered in class? If not, maybe the lecture, when added to your textbook, will answer your questions. If so, what have...
Do you perhaps mean "Please follow this link"? What do you mean by "put down your back"? What is your specific question regarding whatever is in the...
Try using the formula they gave you. From the powers on the variables, which term must they be doing? Plug that info into the formula, and simplify....