Evaluate
\frac{48\sqrt{257}\ln(\frac{|2x+\frac{9}{4}-\sqrt{257}|}{|2x+\sqrt{257}+\frac{9}{4}|})}{257}+С
Differentiate w.r.t. x
\frac{96\sqrt{257}\left(8xsign(\frac{8x+9-4\sqrt{257}}{4})+4\sqrt{257}sign(\frac{8x+9-4\sqrt{257}}{4})+9sign(\frac{8x+9-4\sqrt{257}}{4})-4|\frac{8x+9-4\sqrt{257}}{4}|\right)}{257\left(8x+4\sqrt{257}+9\right)|\frac{8x+9-4\sqrt{257}}{4}|}
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