Let A = (4,-1), B = (6,2), and C = (-1,2). There exists a point X and a constant k such that for any point P:
PA^2 + PB^2 + PC^2 = 3PX^2 + k.
Find the constant k
The same question was posted here: https://web2.0calc.com/questions/geometry-help-thanks_1
Hope this helped!
I still need help :( The other post was not answered. Thanks for replying.