Question 17
The perimeter of a triangle formed by points A(1,2), B(3,-4), and C(-2,-3) is in the form $x\sqrt{2y}+\sqrt{2z}+\sqrt{2s}$. If y<s<z, what is the value of x+y+z-s?
Use the usual simplified-radical representation with positive integer coefficients and squarefree radicands.
Use the usual simplified-radical representation with positive integer coefficients and squarefree radicands.