A and B are points on the graph y=x
^{2}+8x+7
C and D are points on the graph y=x
^{2}+8x7
and ABCD is a square.
Find all possible xcoordinates of point A
(In reply to
Four squares by analysis (spoiler) by Harry)
When I thought up this problem I remember trying a lot of things to get the solutions to all be at least rational. I could not manage it and still get four solutions.

Posted by Jer
on 20110212 19:10:06 