/x - 2\ |-----| \5 + x/ ------- /5 - x\ |-----| \x - 2/
2 (-2 + x) --------------- (5 + x)*(5 - x)
(-2.0 + x)^2/((5.0 + x)*(5.0 - x))
2 -(-2 + x) ----------- 2 -25 + x
-29 + 4*x -1 + --------- 2 -25 + x
2 -(-2 + x) ---------------- (-5 + x)*(5 + x)
2 (x - 2) --------------- (5 + x)*(5 - x)