These are the steps I have done thus far:Quote:
A straight line of gradient is drawn through the point on the curve . Find, in terms of , the coordinates of the point at which the line intercepts the curve again.
Let be the - intercept
Hence equation of the line is
Equating this into ,
I'm not sure how I can factorise this into the answer that is
Any help would be greatly appreciated and thank you very much in advance! :)