2 - x + 25 2*x --------- + ----- 2 x - 5 (x - 5)
(25.0 - x^2)/(-5.0 + x)^2 + 2.0*x/(-5.0 + x)
/ 2\ 2 (-5 + x)*\25 - x / + 2*x*(-5 + x) ---------------------------------- 3 (-5 + x)
2 25 - x + 2*x*(-5 + x) ---------------------- 2 (-5 + x)
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