Integrand size = 21, antiderivative size = 270 \[ \int \frac {x \left (c+d x+e x^2\right )}{\left (a+b x^3\right )^4} \, dx=-\frac {x \left (a e-b c x-b d x^2\right )}{9 a b \left (a+b x^3\right )^3}+\frac {x (5 a e+28 b c x)}{162 a^3 b \left (a+b x^3\right )}-\frac {6 a d-x (a e+7 b c x)}{54 a^2 b \left (a+b x^3\right )^2}-\frac {\left (14 b^{2/3} c+5 a^{2/3} e\right ) \arctan \left (\frac {\sqrt [3]{a}-2 \sqrt [3]{b} x}{\sqrt {3} \sqrt [3]{a}}\right )}{81 \sqrt {3} a^{10/3} b^{4/3}}-\frac {\left (14 b^{2/3} c-5 a^{2/3} e\right ) \log \left (\sqrt [3]{a}+\sqrt [3]{b} x\right )}{243 a^{10/3} b^{4/3}}+\frac {\left (14 b^{2/3} c-5 a^{2/3} e\right ) \log \left (a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} x+b^{2/3} x^2\right )}{486 a^{10/3} b^{4/3}} \]
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Time = 0.18 (sec) , antiderivative size = 270, normalized size of antiderivative = 1.00, number of steps used = 9, number of rules used = 9, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.429, Rules used = {1842, 1868, 1869, 1874, 31, 648, 631, 210, 642} \[ \int \frac {x \left (c+d x+e x^2\right )}{\left (a+b x^3\right )^4} \, dx=-\frac {\arctan \left (\frac {\sqrt [3]{a}-2 \sqrt [3]{b} x}{\sqrt {3} \sqrt [3]{a}}\right ) \left (5 a^{2/3} e+14 b^{2/3} c\right )}{81 \sqrt {3} a^{10/3} b^{4/3}}+\frac {\left (14 b^{2/3} c-5 a^{2/3} e\right ) \log \left (a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} x+b^{2/3} x^2\right )}{486 a^{10/3} b^{4/3}}-\frac {\left (14 b^{2/3} c-5 a^{2/3} e\right ) \log \left (\sqrt [3]{a}+\sqrt [3]{b} x\right )}{243 a^{10/3} b^{4/3}}+\frac {x (5 a e+28 b c x)}{162 a^3 b \left (a+b x^3\right )}-\frac {6 a d-x (a e+7 b c x)}{54 a^2 b \left (a+b x^3\right )^2}-\frac {x \left (a e-b c x-b d x^2\right )}{9 a b \left (a+b x^3\right )^3} \]
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Rule 31
Rule 210
Rule 631
Rule 642
Rule 648
Rule 1842
Rule 1868
Rule 1869
Rule 1874
Rubi steps \begin{align*} \text {integral}& = -\frac {x \left (a e-b c x-b d x^2\right )}{9 a b \left (a+b x^3\right )^3}-\frac {\int \frac {-a e-7 b c x-6 b d x^2}{\left (a+b x^3\right )^3} \, dx}{9 a b} \\ & = -\frac {x \left (a e-b c x-b d x^2\right )}{9 a b \left (a+b x^3\right )^3}-\frac {6 a d-x (a e+7 b c x)}{54 a^2 b \left (a+b x^3\right )^2}+\frac {\int \frac {5 a e+28 b c x}{\left (a+b x^3\right )^2} \, dx}{54 a^2 b} \\ & = -\frac {x \left (a e-b c x-b d x^2\right )}{9 a b \left (a+b x^3\right )^3}+\frac {x (5 a e+28 b c x)}{162 a^3 b \left (a+b x^3\right )}-\frac {6 a d-x (a e+7 b c x)}{54 a^2 b \left (a+b x^3\right )^2}-\frac {\int \frac {-10 a e-28 b c x}{a+b x^3} \, dx}{162 a^3 b} \\ & = -\frac {x \left (a e-b c x-b d x^2\right )}{9 a b \left (a+b x^3\right )^3}+\frac {x (5 a e+28 b c x)}{162 a^3 b \left (a+b x^3\right )}-\frac {6 a d-x (a e+7 b c x)}{54 a^2 b \left (a+b x^3\right )^2}-\frac {\int \frac {\sqrt [3]{a} \left (-28 \sqrt [3]{a} b c-20 a \sqrt [3]{b} e\right )+\sqrt [3]{b} \left (-28 \sqrt [3]{a} b c+10 a \sqrt [3]{b} e\right ) x}{a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} x+b^{2/3} x^2} \, dx}{486 a^{11/3} b^{4/3}}-\frac {\left (14 b^{2/3} c-5 a^{2/3} e\right ) \int \frac {1}{\sqrt [3]{a}+\sqrt [3]{b} x} \, dx}{243 a^{10/3} b} \\ & = -\frac {x \left (a e-b c x-b d x^2\right )}{9 a b \left (a+b x^3\right )^3}+\frac {x (5 a e+28 b c x)}{162 a^3 b \left (a+b x^3\right )}-\frac {6 a d-x (a e+7 b c x)}{54 a^2 b \left (a+b x^3\right )^2}-\frac {\left (14 b^{2/3} c-5 a^{2/3} e\right ) \log \left (\sqrt [3]{a}+\sqrt [3]{b} x\right )}{243 a^{10/3} b^{4/3}}+\frac {\left (14 b^{2/3} c-5 a^{2/3} e\right ) \int \frac {-\sqrt [3]{a} \sqrt [3]{b}+2 b^{2/3} x}{a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} x+b^{2/3} x^2} \, dx}{486 a^{10/3} b^{4/3}}+\frac {\left (14 b^{2/3} c+5 a^{2/3} e\right ) \int \frac {1}{a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} x+b^{2/3} x^2} \, dx}{162 a^3 b} \\ & = -\frac {x \left (a e-b c x-b d x^2\right )}{9 a b \left (a+b x^3\right )^3}+\frac {x (5 a e+28 b c x)}{162 a^3 b \left (a+b x^3\right )}-\frac {6 a d-x (a e+7 b c x)}{54 a^2 b \left (a+b x^3\right )^2}-\frac {\left (14 b^{2/3} c-5 a^{2/3} e\right ) \log \left (\sqrt [3]{a}+\sqrt [3]{b} x\right )}{243 a^{10/3} b^{4/3}}+\frac {\left (14 b^{2/3} c-5 a^{2/3} e\right ) \log \left (a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} x+b^{2/3} x^2\right )}{486 a^{10/3} b^{4/3}}+\frac {\left (14 b^{2/3} c+5 a^{2/3} e\right ) \text {Subst}\left (\int \frac {1}{-3-x^2} \, dx,x,1-\frac {2 \sqrt [3]{b} x}{\sqrt [3]{a}}\right )}{81 a^{10/3} b^{4/3}} \\ & = -\frac {x \left (a e-b c x-b d x^2\right )}{9 a b \left (a+b x^3\right )^3}+\frac {x (5 a e+28 b c x)}{162 a^3 b \left (a+b x^3\right )}-\frac {6 a d-x (a e+7 b c x)}{54 a^2 b \left (a+b x^3\right )^2}-\frac {\left (14 b^{2/3} c+5 a^{2/3} e\right ) \tan ^{-1}\left (\frac {\sqrt [3]{a}-2 \sqrt [3]{b} x}{\sqrt {3} \sqrt [3]{a}}\right )}{81 \sqrt {3} a^{10/3} b^{4/3}}-\frac {\left (14 b^{2/3} c-5 a^{2/3} e\right ) \log \left (\sqrt [3]{a}+\sqrt [3]{b} x\right )}{243 a^{10/3} b^{4/3}}+\frac {\left (14 b^{2/3} c-5 a^{2/3} e\right ) \log \left (a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} x+b^{2/3} x^2\right )}{486 a^{10/3} b^{4/3}} \\ \end{align*}
Time = 0.36 (sec) , antiderivative size = 241, normalized size of antiderivative = 0.89 \[ \int \frac {x \left (c+d x+e x^2\right )}{\left (a+b x^3\right )^4} \, dx=\frac {\frac {3 a b^{2/3} \left (28 b^3 c x^8-2 a^3 (9 d+5 e x)+a b^2 x^5 \left (77 c+5 e x^2\right )+a^2 b x^2 \left (67 c+13 e x^2\right )\right )}{\left (a+b x^3\right )^3}-2 \sqrt {3} a^{2/3} \sqrt [3]{b} \left (14 b^{2/3} c+5 a^{2/3} e\right ) \arctan \left (\frac {1-\frac {2 \sqrt [3]{b} x}{\sqrt [3]{a}}}{\sqrt {3}}\right )+2 \left (-14 a^{2/3} b c+5 a^{4/3} \sqrt [3]{b} e\right ) \log \left (\sqrt [3]{a}+\sqrt [3]{b} x\right )+a^{2/3} \sqrt [3]{b} \left (14 b^{2/3} c-5 a^{2/3} e\right ) \log \left (a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} x+b^{2/3} x^2\right )}{486 a^4 b^{5/3}} \]
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Result contains higher order function than in optimal. Order 9 vs. order 3.
Time = 1.55 (sec) , antiderivative size = 119, normalized size of antiderivative = 0.44
method | result | size |
risch | \(\frac {\frac {14 c \,b^{2} x^{8}}{81 a^{3}}+\frac {5 b e \,x^{7}}{162 a^{2}}+\frac {77 b c \,x^{5}}{162 a^{2}}+\frac {13 e \,x^{4}}{162 a}+\frac {67 c \,x^{2}}{162 a}-\frac {5 e x}{81 b}-\frac {d}{9 b}}{\left (b \,x^{3}+a \right )^{3}}+\frac {\munderset {\textit {\_R} =\operatorname {RootOf}\left (b \,\textit {\_Z}^{3}+a \right )}{\sum }\frac {\left (\frac {14 c \textit {\_R}}{a}+\frac {5 e}{b}\right ) \ln \left (x -\textit {\_R} \right )}{\textit {\_R}^{2}}}{243 a^{2} b}\) | \(119\) |
default | \(\frac {\frac {14 c \,b^{2} x^{8}}{81 a^{3}}+\frac {5 b e \,x^{7}}{162 a^{2}}+\frac {77 b c \,x^{5}}{162 a^{2}}+\frac {13 e \,x^{4}}{162 a}+\frac {67 c \,x^{2}}{162 a}-\frac {5 e x}{81 b}-\frac {d}{9 b}}{\left (b \,x^{3}+a \right )^{3}}+\frac {5 a e \left (\frac {\ln \left (x +\left (\frac {a}{b}\right )^{\frac {1}{3}}\right )}{3 b \left (\frac {a}{b}\right )^{\frac {2}{3}}}-\frac {\ln \left (x^{2}-\left (\frac {a}{b}\right )^{\frac {1}{3}} x +\left (\frac {a}{b}\right )^{\frac {2}{3}}\right )}{6 b \left (\frac {a}{b}\right )^{\frac {2}{3}}}+\frac {\sqrt {3}\, \arctan \left (\frac {\sqrt {3}\, \left (\frac {2 x}{\left (\frac {a}{b}\right )^{\frac {1}{3}}}-1\right )}{3}\right )}{3 b \left (\frac {a}{b}\right )^{\frac {2}{3}}}\right )+14 b c \left (-\frac {\ln \left (x +\left (\frac {a}{b}\right )^{\frac {1}{3}}\right )}{3 b \left (\frac {a}{b}\right )^{\frac {1}{3}}}+\frac {\ln \left (x^{2}-\left (\frac {a}{b}\right )^{\frac {1}{3}} x +\left (\frac {a}{b}\right )^{\frac {2}{3}}\right )}{6 b \left (\frac {a}{b}\right )^{\frac {1}{3}}}+\frac {\sqrt {3}\, \arctan \left (\frac {\sqrt {3}\, \left (\frac {2 x}{\left (\frac {a}{b}\right )^{\frac {1}{3}}}-1\right )}{3}\right )}{3 b \left (\frac {a}{b}\right )^{\frac {1}{3}}}\right )}{81 a^{3} b}\) | \(273\) |
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Result contains complex when optimal does not.
Time = 1.13 (sec) , antiderivative size = 2646, normalized size of antiderivative = 9.80 \[ \int \frac {x \left (c+d x+e x^2\right )}{\left (a+b x^3\right )^4} \, dx=\text {Too large to display} \]
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Time = 6.08 (sec) , antiderivative size = 214, normalized size of antiderivative = 0.79 \[ \int \frac {x \left (c+d x+e x^2\right )}{\left (a+b x^3\right )^4} \, dx=\operatorname {RootSum} {\left (14348907 t^{3} a^{10} b^{4} + 51030 t a^{4} b^{2} c e - 125 a^{2} e^{3} + 2744 b^{2} c^{3}, \left ( t \mapsto t \log {\left (x + \frac {826686 t^{2} a^{7} b^{3} c + 6075 t a^{5} b e^{2} + 1960 a b c^{2} e}{125 a^{2} e^{3} + 2744 b^{2} c^{3}} \right )} \right )\right )} + \frac {- 18 a^{3} d - 10 a^{3} e x + 67 a^{2} b c x^{2} + 13 a^{2} b e x^{4} + 77 a b^{2} c x^{5} + 5 a b^{2} e x^{7} + 28 b^{3} c x^{8}}{162 a^{6} b + 486 a^{5} b^{2} x^{3} + 486 a^{4} b^{3} x^{6} + 162 a^{3} b^{4} x^{9}} \]
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Time = 0.29 (sec) , antiderivative size = 260, normalized size of antiderivative = 0.96 \[ \int \frac {x \left (c+d x+e x^2\right )}{\left (a+b x^3\right )^4} \, dx=\frac {28 \, b^{3} c x^{8} + 5 \, a b^{2} e x^{7} + 77 \, a b^{2} c x^{5} + 13 \, a^{2} b e x^{4} + 67 \, a^{2} b c x^{2} - 10 \, a^{3} e x - 18 \, a^{3} d}{162 \, {\left (a^{3} b^{4} x^{9} + 3 \, a^{4} b^{3} x^{6} + 3 \, a^{5} b^{2} x^{3} + a^{6} b\right )}} + \frac {\sqrt {3} {\left (14 \, b c \left (\frac {a}{b}\right )^{\frac {1}{3}} + 5 \, a e\right )} \arctan \left (\frac {\sqrt {3} {\left (2 \, x - \left (\frac {a}{b}\right )^{\frac {1}{3}}\right )}}{3 \, \left (\frac {a}{b}\right )^{\frac {1}{3}}}\right )}{243 \, a^{3} b^{2} \left (\frac {a}{b}\right )^{\frac {2}{3}}} + \frac {{\left (14 \, b c \left (\frac {a}{b}\right )^{\frac {1}{3}} - 5 \, a e\right )} \log \left (x^{2} - x \left (\frac {a}{b}\right )^{\frac {1}{3}} + \left (\frac {a}{b}\right )^{\frac {2}{3}}\right )}{486 \, a^{3} b^{2} \left (\frac {a}{b}\right )^{\frac {2}{3}}} - \frac {{\left (14 \, b c \left (\frac {a}{b}\right )^{\frac {1}{3}} - 5 \, a e\right )} \log \left (x + \left (\frac {a}{b}\right )^{\frac {1}{3}}\right )}{243 \, a^{3} b^{2} \left (\frac {a}{b}\right )^{\frac {2}{3}}} \]
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Time = 0.29 (sec) , antiderivative size = 238, normalized size of antiderivative = 0.88 \[ \int \frac {x \left (c+d x+e x^2\right )}{\left (a+b x^3\right )^4} \, dx=-\frac {\sqrt {3} {\left (5 \, a e - 14 \, \left (-a b^{2}\right )^{\frac {1}{3}} c\right )} \arctan \left (\frac {\sqrt {3} {\left (2 \, x + \left (-\frac {a}{b}\right )^{\frac {1}{3}}\right )}}{3 \, \left (-\frac {a}{b}\right )^{\frac {1}{3}}}\right )}{243 \, \left (-a b^{2}\right )^{\frac {2}{3}} a^{3}} - \frac {{\left (5 \, a e + 14 \, \left (-a b^{2}\right )^{\frac {1}{3}} c\right )} \log \left (x^{2} + x \left (-\frac {a}{b}\right )^{\frac {1}{3}} + \left (-\frac {a}{b}\right )^{\frac {2}{3}}\right )}{486 \, \left (-a b^{2}\right )^{\frac {2}{3}} a^{3}} - \frac {{\left (14 \, b c \left (-\frac {a}{b}\right )^{\frac {1}{3}} + 5 \, a e\right )} \left (-\frac {a}{b}\right )^{\frac {1}{3}} \log \left ({\left | x - \left (-\frac {a}{b}\right )^{\frac {1}{3}} \right |}\right )}{243 \, a^{4} b} + \frac {28 \, b^{3} c x^{8} + 5 \, a b^{2} e x^{7} + 77 \, a b^{2} c x^{5} + 13 \, a^{2} b e x^{4} + 67 \, a^{2} b c x^{2} - 10 \, a^{3} e x - 18 \, a^{3} d}{162 \, {\left (b x^{3} + a\right )}^{3} a^{3} b} \]
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Time = 0.27 (sec) , antiderivative size = 265, normalized size of antiderivative = 0.98 \[ \int \frac {x \left (c+d x+e x^2\right )}{\left (a+b x^3\right )^4} \, dx=\frac {\frac {67\,c\,x^2}{162\,a}-\frac {d}{9\,b}+\frac {13\,e\,x^4}{162\,a}-\frac {5\,e\,x}{81\,b}+\frac {14\,b^2\,c\,x^8}{81\,a^3}+\frac {77\,b\,c\,x^5}{162\,a^2}+\frac {5\,b\,e\,x^7}{162\,a^2}}{a^3+3\,a^2\,b\,x^3+3\,a\,b^2\,x^6+b^3\,x^9}+\left (\sum _{k=1}^3\ln \left (\frac {70\,a\,c\,e+{\mathrm {root}\left (14348907\,a^{10}\,b^4\,z^3+51030\,a^4\,b^2\,c\,e\,z-125\,a^2\,e^3+2744\,b^2\,c^3,z,k\right )}^2\,a^7\,b^2\,59049+196\,b\,c^2\,x+\mathrm {root}\left (14348907\,a^{10}\,b^4\,z^3+51030\,a^4\,b^2\,c\,e\,z-125\,a^2\,e^3+2744\,b^2\,c^3,z,k\right )\,a^4\,b\,e\,x\,1215}{a^6\,6561}\right )\,\mathrm {root}\left (14348907\,a^{10}\,b^4\,z^3+51030\,a^4\,b^2\,c\,e\,z-125\,a^2\,e^3+2744\,b^2\,c^3,z,k\right )\right ) \]
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