Integrand size = 22, antiderivative size = 562 \[ \int x (a+b \arctan (c x)) \left (d+e \log \left (f+g x^2\right )\right ) \, dx=-\frac {b (d-e) x}{2 c}+\frac {b e x}{c}+\frac {b (d-e) \arctan (c x)}{2 c^2}+\frac {1}{2} d x^2 (a+b \arctan (c x))-\frac {1}{2} e x^2 (a+b \arctan (c x))-\frac {b e \sqrt {f} \arctan \left (\frac {\sqrt {g} x}{\sqrt {f}}\right )}{c \sqrt {g}}-\frac {b e \left (c^2 f-g\right ) \arctan (c x) \log \left (\frac {2}{1-i c x}\right )}{c^2 g}+\frac {b e \left (c^2 f-g\right ) \arctan (c x) \log \left (\frac {2 c \left (\sqrt {-f}-\sqrt {g} x\right )}{\left (c \sqrt {-f}-i \sqrt {g}\right ) (1-i c x)}\right )}{2 c^2 g}+\frac {b e \left (c^2 f-g\right ) \arctan (c x) \log \left (\frac {2 c \left (\sqrt {-f}+\sqrt {g} x\right )}{\left (c \sqrt {-f}+i \sqrt {g}\right ) (1-i c x)}\right )}{2 c^2 g}-\frac {b e x \log \left (f+g x^2\right )}{2 c}-\frac {b e \left (c^2 f-g\right ) \arctan (c x) \log \left (f+g x^2\right )}{2 c^2 g}+\frac {e \left (f+g x^2\right ) (a+b \arctan (c x)) \log \left (f+g x^2\right )}{2 g}+\frac {i b e \left (c^2 f-g\right ) \operatorname {PolyLog}\left (2,1-\frac {2}{1-i c x}\right )}{2 c^2 g}-\frac {i b e \left (c^2 f-g\right ) \operatorname {PolyLog}\left (2,1-\frac {2 c \left (\sqrt {-f}-\sqrt {g} x\right )}{\left (c \sqrt {-f}-i \sqrt {g}\right ) (1-i c x)}\right )}{4 c^2 g}-\frac {i b e \left (c^2 f-g\right ) \operatorname {PolyLog}\left (2,1-\frac {2 c \left (\sqrt {-f}+\sqrt {g} x\right )}{\left (c \sqrt {-f}+i \sqrt {g}\right ) (1-i c x)}\right )}{4 c^2 g} \]
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Time = 0.51 (sec) , antiderivative size = 562, normalized size of antiderivative = 1.00, number of steps used = 21, number of rules used = 16, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.727, Rules used = {2504, 2436, 2332, 5139, 327, 209, 2608, 2498, 211, 2520, 12, 5048, 4966, 2449, 2352, 2497} \[ \int x (a+b \arctan (c x)) \left (d+e \log \left (f+g x^2\right )\right ) \, dx=\frac {1}{2} d x^2 (a+b \arctan (c x))+\frac {e \left (f+g x^2\right ) \log \left (f+g x^2\right ) (a+b \arctan (c x))}{2 g}-\frac {1}{2} e x^2 (a+b \arctan (c x))+\frac {b (d-e) \arctan (c x)}{2 c^2}-\frac {b e \arctan (c x) \left (c^2 f-g\right ) \log \left (f+g x^2\right )}{2 c^2 g}-\frac {b e \arctan (c x) \left (c^2 f-g\right ) \log \left (\frac {2}{1-i c x}\right )}{c^2 g}+\frac {b e \arctan (c x) \left (c^2 f-g\right ) \log \left (\frac {2 c \left (\sqrt {-f}-\sqrt {g} x\right )}{(1-i c x) \left (c \sqrt {-f}-i \sqrt {g}\right )}\right )}{2 c^2 g}+\frac {b e \arctan (c x) \left (c^2 f-g\right ) \log \left (\frac {2 c \left (\sqrt {-f}+\sqrt {g} x\right )}{(1-i c x) \left (c \sqrt {-f}+i \sqrt {g}\right )}\right )}{2 c^2 g}-\frac {b e \sqrt {f} \arctan \left (\frac {\sqrt {g} x}{\sqrt {f}}\right )}{c \sqrt {g}}+\frac {i b e \left (c^2 f-g\right ) \operatorname {PolyLog}\left (2,1-\frac {2}{1-i c x}\right )}{2 c^2 g}-\frac {i b e \left (c^2 f-g\right ) \operatorname {PolyLog}\left (2,1-\frac {2 c \left (\sqrt {-f}-\sqrt {g} x\right )}{\left (c \sqrt {-f}-i \sqrt {g}\right ) (1-i c x)}\right )}{4 c^2 g}-\frac {i b e \left (c^2 f-g\right ) \operatorname {PolyLog}\left (2,1-\frac {2 c \left (\sqrt {g} x+\sqrt {-f}\right )}{\left (\sqrt {-f} c+i \sqrt {g}\right ) (1-i c x)}\right )}{4 c^2 g}-\frac {b x (d-e)}{2 c}-\frac {b e x \log \left (f+g x^2\right )}{2 c}+\frac {b e x}{c} \]
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Rule 12
Rule 209
Rule 211
Rule 327
Rule 2332
Rule 2352
Rule 2436
Rule 2449
Rule 2497
Rule 2498
Rule 2504
Rule 2520
Rule 2608
Rule 4966
Rule 5048
Rule 5139
Rubi steps \begin{align*} \text {integral}& = \frac {1}{2} d x^2 (a+b \arctan (c x))-\frac {1}{2} e x^2 (a+b \arctan (c x))+\frac {e \left (f+g x^2\right ) (a+b \arctan (c x)) \log \left (f+g x^2\right )}{2 g}-(b c) \int \left (\frac {(d-e) x^2}{2 \left (1+c^2 x^2\right )}+\frac {e \left (f+g x^2\right ) \log \left (f+g x^2\right )}{2 g \left (1+c^2 x^2\right )}\right ) \, dx \\ & = \frac {1}{2} d x^2 (a+b \arctan (c x))-\frac {1}{2} e x^2 (a+b \arctan (c x))+\frac {e \left (f+g x^2\right ) (a+b \arctan (c x)) \log \left (f+g x^2\right )}{2 g}-\frac {1}{2} (b c (d-e)) \int \frac {x^2}{1+c^2 x^2} \, dx-\frac {(b c e) \int \frac {\left (f+g x^2\right ) \log \left (f+g x^2\right )}{1+c^2 x^2} \, dx}{2 g} \\ & = -\frac {b (d-e) x}{2 c}+\frac {1}{2} d x^2 (a+b \arctan (c x))-\frac {1}{2} e x^2 (a+b \arctan (c x))+\frac {e \left (f+g x^2\right ) (a+b \arctan (c x)) \log \left (f+g x^2\right )}{2 g}+\frac {(b (d-e)) \int \frac {1}{1+c^2 x^2} \, dx}{2 c}-\frac {(b c e) \int \left (\frac {g \log \left (f+g x^2\right )}{c^2}+\frac {\left (c^2 f-g\right ) \log \left (f+g x^2\right )}{c^2 \left (1+c^2 x^2\right )}\right ) \, dx}{2 g} \\ & = -\frac {b (d-e) x}{2 c}+\frac {b (d-e) \arctan (c x)}{2 c^2}+\frac {1}{2} d x^2 (a+b \arctan (c x))-\frac {1}{2} e x^2 (a+b \arctan (c x))+\frac {e \left (f+g x^2\right ) (a+b \arctan (c x)) \log \left (f+g x^2\right )}{2 g}-\frac {(b e) \int \log \left (f+g x^2\right ) \, dx}{2 c}-\frac {\left (b c e \left (f-\frac {g}{c^2}\right )\right ) \int \frac {\log \left (f+g x^2\right )}{1+c^2 x^2} \, dx}{2 g} \\ & = -\frac {b (d-e) x}{2 c}+\frac {b (d-e) \arctan (c x)}{2 c^2}+\frac {1}{2} d x^2 (a+b \arctan (c x))-\frac {1}{2} e x^2 (a+b \arctan (c x))-\frac {b e x \log \left (f+g x^2\right )}{2 c}-\frac {b e \left (f-\frac {g}{c^2}\right ) \arctan (c x) \log \left (f+g x^2\right )}{2 g}+\frac {e \left (f+g x^2\right ) (a+b \arctan (c x)) \log \left (f+g x^2\right )}{2 g}+\frac {(b e g) \int \frac {x^2}{f+g x^2} \, dx}{c}+\left (b c e \left (f-\frac {g}{c^2}\right )\right ) \int \frac {x \arctan (c x)}{c \left (f+g x^2\right )} \, dx \\ & = -\frac {b (d-e) x}{2 c}+\frac {b e x}{c}+\frac {b (d-e) \arctan (c x)}{2 c^2}+\frac {1}{2} d x^2 (a+b \arctan (c x))-\frac {1}{2} e x^2 (a+b \arctan (c x))-\frac {b e x \log \left (f+g x^2\right )}{2 c}-\frac {b e \left (f-\frac {g}{c^2}\right ) \arctan (c x) \log \left (f+g x^2\right )}{2 g}+\frac {e \left (f+g x^2\right ) (a+b \arctan (c x)) \log \left (f+g x^2\right )}{2 g}-\frac {(b e f) \int \frac {1}{f+g x^2} \, dx}{c}+\left (b e \left (f-\frac {g}{c^2}\right )\right ) \int \frac {x \arctan (c x)}{f+g x^2} \, dx \\ & = -\frac {b (d-e) x}{2 c}+\frac {b e x}{c}+\frac {b (d-e) \arctan (c x)}{2 c^2}+\frac {1}{2} d x^2 (a+b \arctan (c x))-\frac {1}{2} e x^2 (a+b \arctan (c x))-\frac {b e \sqrt {f} \arctan \left (\frac {\sqrt {g} x}{\sqrt {f}}\right )}{c \sqrt {g}}-\frac {b e x \log \left (f+g x^2\right )}{2 c}-\frac {b e \left (f-\frac {g}{c^2}\right ) \arctan (c x) \log \left (f+g x^2\right )}{2 g}+\frac {e \left (f+g x^2\right ) (a+b \arctan (c x)) \log \left (f+g x^2\right )}{2 g}+\left (b e \left (f-\frac {g}{c^2}\right )\right ) \int \left (-\frac {\arctan (c x)}{2 \sqrt {g} \left (\sqrt {-f}-\sqrt {g} x\right )}+\frac {\arctan (c x)}{2 \sqrt {g} \left (\sqrt {-f}+\sqrt {g} x\right )}\right ) \, dx \\ & = -\frac {b (d-e) x}{2 c}+\frac {b e x}{c}+\frac {b (d-e) \arctan (c x)}{2 c^2}+\frac {1}{2} d x^2 (a+b \arctan (c x))-\frac {1}{2} e x^2 (a+b \arctan (c x))-\frac {b e \sqrt {f} \arctan \left (\frac {\sqrt {g} x}{\sqrt {f}}\right )}{c \sqrt {g}}-\frac {b e x \log \left (f+g x^2\right )}{2 c}-\frac {b e \left (f-\frac {g}{c^2}\right ) \arctan (c x) \log \left (f+g x^2\right )}{2 g}+\frac {e \left (f+g x^2\right ) (a+b \arctan (c x)) \log \left (f+g x^2\right )}{2 g}-\frac {\left (b e \left (f-\frac {g}{c^2}\right )\right ) \int \frac {\arctan (c x)}{\sqrt {-f}-\sqrt {g} x} \, dx}{2 \sqrt {g}}+\frac {\left (b e \left (f-\frac {g}{c^2}\right )\right ) \int \frac {\arctan (c x)}{\sqrt {-f}+\sqrt {g} x} \, dx}{2 \sqrt {g}} \\ & = -\frac {b (d-e) x}{2 c}+\frac {b e x}{c}+\frac {b (d-e) \arctan (c x)}{2 c^2}+\frac {1}{2} d x^2 (a+b \arctan (c x))-\frac {1}{2} e x^2 (a+b \arctan (c x))-\frac {b e \sqrt {f} \arctan \left (\frac {\sqrt {g} x}{\sqrt {f}}\right )}{c \sqrt {g}}-\frac {b e \left (f-\frac {g}{c^2}\right ) \arctan (c x) \log \left (\frac {2}{1-i c x}\right )}{g}+\frac {b e \left (f-\frac {g}{c^2}\right ) \arctan (c x) \log \left (\frac {2 c \left (\sqrt {-f}-\sqrt {g} x\right )}{\left (c \sqrt {-f}-i \sqrt {g}\right ) (1-i c x)}\right )}{2 g}+\frac {b e \left (f-\frac {g}{c^2}\right ) \arctan (c x) \log \left (\frac {2 c \left (\sqrt {-f}+\sqrt {g} x\right )}{\left (c \sqrt {-f}+i \sqrt {g}\right ) (1-i c x)}\right )}{2 g}-\frac {b e x \log \left (f+g x^2\right )}{2 c}-\frac {b e \left (f-\frac {g}{c^2}\right ) \arctan (c x) \log \left (f+g x^2\right )}{2 g}+\frac {e \left (f+g x^2\right ) (a+b \arctan (c x)) \log \left (f+g x^2\right )}{2 g}+2 \frac {\left (b c e \left (f-\frac {g}{c^2}\right )\right ) \int \frac {\log \left (\frac {2}{1-i c x}\right )}{1+c^2 x^2} \, dx}{2 g}-\frac {\left (b c e \left (f-\frac {g}{c^2}\right )\right ) \int \frac {\log \left (\frac {2 c \left (\sqrt {-f}-\sqrt {g} x\right )}{\left (c \sqrt {-f}-i \sqrt {g}\right ) (1-i c x)}\right )}{1+c^2 x^2} \, dx}{2 g}-\frac {\left (b c e \left (f-\frac {g}{c^2}\right )\right ) \int \frac {\log \left (\frac {2 c \left (\sqrt {-f}+\sqrt {g} x\right )}{\left (c \sqrt {-f}+i \sqrt {g}\right ) (1-i c x)}\right )}{1+c^2 x^2} \, dx}{2 g} \\ & = -\frac {b (d-e) x}{2 c}+\frac {b e x}{c}+\frac {b (d-e) \arctan (c x)}{2 c^2}+\frac {1}{2} d x^2 (a+b \arctan (c x))-\frac {1}{2} e x^2 (a+b \arctan (c x))-\frac {b e \sqrt {f} \arctan \left (\frac {\sqrt {g} x}{\sqrt {f}}\right )}{c \sqrt {g}}-\frac {b e \left (f-\frac {g}{c^2}\right ) \arctan (c x) \log \left (\frac {2}{1-i c x}\right )}{g}+\frac {b e \left (f-\frac {g}{c^2}\right ) \arctan (c x) \log \left (\frac {2 c \left (\sqrt {-f}-\sqrt {g} x\right )}{\left (c \sqrt {-f}-i \sqrt {g}\right ) (1-i c x)}\right )}{2 g}+\frac {b e \left (f-\frac {g}{c^2}\right ) \arctan (c x) \log \left (\frac {2 c \left (\sqrt {-f}+\sqrt {g} x\right )}{\left (c \sqrt {-f}+i \sqrt {g}\right ) (1-i c x)}\right )}{2 g}-\frac {b e x \log \left (f+g x^2\right )}{2 c}-\frac {b e \left (f-\frac {g}{c^2}\right ) \arctan (c x) \log \left (f+g x^2\right )}{2 g}+\frac {e \left (f+g x^2\right ) (a+b \arctan (c x)) \log \left (f+g x^2\right )}{2 g}-\frac {i b e \left (f-\frac {g}{c^2}\right ) \operatorname {PolyLog}\left (2,1-\frac {2 c \left (\sqrt {-f}-\sqrt {g} x\right )}{\left (c \sqrt {-f}-i \sqrt {g}\right ) (1-i c x)}\right )}{4 g}-\frac {i b e \left (f-\frac {g}{c^2}\right ) \operatorname {PolyLog}\left (2,1-\frac {2 c \left (\sqrt {-f}+\sqrt {g} x\right )}{\left (c \sqrt {-f}+i \sqrt {g}\right ) (1-i c x)}\right )}{4 g}+2 \frac {\left (i b e \left (f-\frac {g}{c^2}\right )\right ) \text {Subst}\left (\int \frac {\log (2 x)}{1-2 x} \, dx,x,\frac {1}{1-i c x}\right )}{2 g} \\ & = -\frac {b (d-e) x}{2 c}+\frac {b e x}{c}+\frac {b (d-e) \arctan (c x)}{2 c^2}+\frac {1}{2} d x^2 (a+b \arctan (c x))-\frac {1}{2} e x^2 (a+b \arctan (c x))-\frac {b e \sqrt {f} \arctan \left (\frac {\sqrt {g} x}{\sqrt {f}}\right )}{c \sqrt {g}}-\frac {b e \left (f-\frac {g}{c^2}\right ) \arctan (c x) \log \left (\frac {2}{1-i c x}\right )}{g}+\frac {b e \left (f-\frac {g}{c^2}\right ) \arctan (c x) \log \left (\frac {2 c \left (\sqrt {-f}-\sqrt {g} x\right )}{\left (c \sqrt {-f}-i \sqrt {g}\right ) (1-i c x)}\right )}{2 g}+\frac {b e \left (f-\frac {g}{c^2}\right ) \arctan (c x) \log \left (\frac {2 c \left (\sqrt {-f}+\sqrt {g} x\right )}{\left (c \sqrt {-f}+i \sqrt {g}\right ) (1-i c x)}\right )}{2 g}-\frac {b e x \log \left (f+g x^2\right )}{2 c}-\frac {b e \left (f-\frac {g}{c^2}\right ) \arctan (c x) \log \left (f+g x^2\right )}{2 g}+\frac {e \left (f+g x^2\right ) (a+b \arctan (c x)) \log \left (f+g x^2\right )}{2 g}+\frac {i b e \left (f-\frac {g}{c^2}\right ) \operatorname {PolyLog}\left (2,1-\frac {2}{1-i c x}\right )}{2 g}-\frac {i b e \left (f-\frac {g}{c^2}\right ) \operatorname {PolyLog}\left (2,1-\frac {2 c \left (\sqrt {-f}-\sqrt {g} x\right )}{\left (c \sqrt {-f}-i \sqrt {g}\right ) (1-i c x)}\right )}{4 g}-\frac {i b e \left (f-\frac {g}{c^2}\right ) \operatorname {PolyLog}\left (2,1-\frac {2 c \left (\sqrt {-f}+\sqrt {g} x\right )}{\left (c \sqrt {-f}+i \sqrt {g}\right ) (1-i c x)}\right )}{4 g} \\ \end{align*}
Both result and optimal contain complex but leaf count is larger than twice the leaf count of optimal. \(1140\) vs. \(2(562)=1124\).
Time = 6.75 (sec) , antiderivative size = 1140, normalized size of antiderivative = 2.03 \[ \int x (a+b \arctan (c x)) \left (d+e \log \left (f+g x^2\right )\right ) \, dx=\frac {-2 b c d g x+6 b c e g x+2 a c^2 d g x^2-2 a c^2 e g x^2+2 b d g \arctan (c x)-2 b e g \arctan (c x)+2 b c^2 d g x^2 \arctan (c x)-2 b c^2 e g x^2 \arctan (c x)-4 b c e \sqrt {f} \sqrt {g} \arctan \left (\frac {\sqrt {g} x}{\sqrt {f}}\right )+4 i b c^2 e f \arcsin \left (\sqrt {\frac {c^2 f}{c^2 f-g}}\right ) \arctan \left (\frac {c g x}{\sqrt {c^2 f g}}\right )-4 i b e g \arcsin \left (\sqrt {\frac {c^2 f}{c^2 f-g}}\right ) \arctan \left (\frac {c g x}{\sqrt {c^2 f g}}\right )-4 b c^2 e f \arctan (c x) \log \left (1+e^{2 i \arctan (c x)}\right )+4 b e g \arctan (c x) \log \left (1+e^{2 i \arctan (c x)}\right )+2 b c^2 e f \arcsin \left (\sqrt {\frac {c^2 f}{c^2 f-g}}\right ) \log \left (\frac {c^2 \left (1+e^{2 i \arctan (c x)}\right ) f+\left (-1+e^{2 i \arctan (c x)}\right ) g-2 e^{2 i \arctan (c x)} \sqrt {c^2 f g}}{c^2 f-g}\right )-2 b e g \arcsin \left (\sqrt {\frac {c^2 f}{c^2 f-g}}\right ) \log \left (\frac {c^2 \left (1+e^{2 i \arctan (c x)}\right ) f+\left (-1+e^{2 i \arctan (c x)}\right ) g-2 e^{2 i \arctan (c x)} \sqrt {c^2 f g}}{c^2 f-g}\right )+2 b c^2 e f \arctan (c x) \log \left (\frac {c^2 \left (1+e^{2 i \arctan (c x)}\right ) f+\left (-1+e^{2 i \arctan (c x)}\right ) g-2 e^{2 i \arctan (c x)} \sqrt {c^2 f g}}{c^2 f-g}\right )-2 b e g \arctan (c x) \log \left (\frac {c^2 \left (1+e^{2 i \arctan (c x)}\right ) f+\left (-1+e^{2 i \arctan (c x)}\right ) g-2 e^{2 i \arctan (c x)} \sqrt {c^2 f g}}{c^2 f-g}\right )-2 b c^2 e f \arcsin \left (\sqrt {\frac {c^2 f}{c^2 f-g}}\right ) \log \left (1+\frac {e^{2 i \arctan (c x)} \left (c^2 f+g+2 \sqrt {c^2 f g}\right )}{c^2 f-g}\right )+2 b e g \arcsin \left (\sqrt {\frac {c^2 f}{c^2 f-g}}\right ) \log \left (1+\frac {e^{2 i \arctan (c x)} \left (c^2 f+g+2 \sqrt {c^2 f g}\right )}{c^2 f-g}\right )+2 b c^2 e f \arctan (c x) \log \left (1+\frac {e^{2 i \arctan (c x)} \left (c^2 f+g+2 \sqrt {c^2 f g}\right )}{c^2 f-g}\right )-2 b e g \arctan (c x) \log \left (1+\frac {e^{2 i \arctan (c x)} \left (c^2 f+g+2 \sqrt {c^2 f g}\right )}{c^2 f-g}\right )+2 a c^2 e f \log \left (f+g x^2\right )-2 b c e g x \log \left (f+g x^2\right )+2 a c^2 e g x^2 \log \left (f+g x^2\right )+2 b e g \arctan (c x) \log \left (f+g x^2\right )+2 b c^2 e g x^2 \arctan (c x) \log \left (f+g x^2\right )+2 i b e \left (c^2 f-g\right ) \operatorname {PolyLog}\left (2,-e^{2 i \arctan (c x)}\right )-i b e \left (c^2 f-g\right ) \operatorname {PolyLog}\left (2,\frac {e^{2 i \arctan (c x)} \left (-c^2 f-g+2 \sqrt {c^2 f g}\right )}{c^2 f-g}\right )-i b c^2 e f \operatorname {PolyLog}\left (2,-\frac {e^{2 i \arctan (c x)} \left (c^2 f+g+2 \sqrt {c^2 f g}\right )}{c^2 f-g}\right )+i b e g \operatorname {PolyLog}\left (2,-\frac {e^{2 i \arctan (c x)} \left (c^2 f+g+2 \sqrt {c^2 f g}\right )}{c^2 f-g}\right )}{4 c^2 g} \]
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Result contains higher order function than in optimal. Order 9 vs. order 4.
Time = 13.54 (sec) , antiderivative size = 10102, normalized size of antiderivative = 17.98
method | result | size |
default | \(\text {Expression too large to display}\) | \(10102\) |
parts | \(\text {Expression too large to display}\) | \(10102\) |
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\[ \int x (a+b \arctan (c x)) \left (d+e \log \left (f+g x^2\right )\right ) \, dx=\int { {\left (b \arctan \left (c x\right ) + a\right )} {\left (e \log \left (g x^{2} + f\right ) + d\right )} x \,d x } \]
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Timed out. \[ \int x (a+b \arctan (c x)) \left (d+e \log \left (f+g x^2\right )\right ) \, dx=\text {Timed out} \]
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\[ \int x (a+b \arctan (c x)) \left (d+e \log \left (f+g x^2\right )\right ) \, dx=\int { {\left (b \arctan \left (c x\right ) + a\right )} {\left (e \log \left (g x^{2} + f\right ) + d\right )} x \,d x } \]
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\[ \int x (a+b \arctan (c x)) \left (d+e \log \left (f+g x^2\right )\right ) \, dx=\int { {\left (b \arctan \left (c x\right ) + a\right )} {\left (e \log \left (g x^{2} + f\right ) + d\right )} x \,d x } \]
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Timed out. \[ \int x (a+b \arctan (c x)) \left (d+e \log \left (f+g x^2\right )\right ) \, dx=\int x\,\left (a+b\,\mathrm {atan}\left (c\,x\right )\right )\,\left (d+e\,\ln \left (g\,x^2+f\right )\right ) \,d x \]
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