Hi, i have this question which is related to complex number and i have just no idea how i should solve it. Some guide and help please. Given that z = x + yi and w = (z+8i)/(z-6) , z [tex]\neq[/tex] 6. If w is totally imaginary, show that x^2 + y^2 + 2x - 48 = 0 I've tried alot of way comparing them. Just can't work. I substituted z into w but end up still with a w. How can i get rid of the w?