Evaluate
\frac{7\ln(|x^{2}+7x-1|)}{2}-\frac{98\sqrt{53}\ln(\frac{|2x+7-2\sqrt{53}|}{|2x+2\sqrt{53}+7|})}{53}+С
Differentiate w.r.t. x
\frac{7\sqrt{53}\left(-112sign(2x+7-2\sqrt{53})x^{3}+4\sqrt{53}|2x+7-2\sqrt{53}|x^{2}-112\sqrt{53}sign(2x+7-2\sqrt{53})x^{2}+56|2x+7-2\sqrt{53}|x^{2}-1176sign(2x+7-2\sqrt{53})x^{2}+28\sqrt{53}x|2x+7-2\sqrt{53}|-784\sqrt{53}xsign(2x+7-2\sqrt{53})+604x|2x+7-2\sqrt{53}|-2632xsign(2x+7-2\sqrt{53})+49\sqrt{53}|2x+7-2\sqrt{53}|+112\sqrt{53}sign(2x+7-2\sqrt{53})+392sign(2x+7-2\sqrt{53})+686|2x+7-2\sqrt{53}|\right)}{106|2x+7-2\sqrt{53}|\left(2x+2\sqrt{53}+7\right)\left(x^{2}+7x-1\right)}
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