Integrand size = 23, antiderivative size = 262 \[ \int \frac {c+d x+e x^2}{x^4 \left (a+b x^3\right )^2} \, dx=-\frac {c}{3 a^2 x^3}-\frac {d}{2 a^2 x^2}-\frac {e}{a^2 x}-\frac {x \left (b d+b e x-\frac {b^2 c x^2}{a}\right )}{3 a^2 \left (a+b x^3\right )}+\frac {\sqrt [3]{b} \left (5 \sqrt [3]{b} d+4 \sqrt [3]{a} e\right ) \arctan \left (\frac {\sqrt [3]{a}-2 \sqrt [3]{b} x}{\sqrt {3} \sqrt [3]{a}}\right )}{3 \sqrt {3} a^{8/3}}-\frac {2 b c \log (x)}{a^3}-\frac {\sqrt [3]{b} \left (5 \sqrt [3]{b} d-4 \sqrt [3]{a} e\right ) \log \left (\sqrt [3]{a}+\sqrt [3]{b} x\right )}{9 a^{8/3}}+\frac {\sqrt [3]{b} \left (5 \sqrt [3]{b} d-4 \sqrt [3]{a} e\right ) \log \left (a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} x+b^{2/3} x^2\right )}{18 a^{8/3}}+\frac {2 b c \log \left (a+b x^3\right )}{3 a^3} \]
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Time = 0.28 (sec) , antiderivative size = 262, normalized size of antiderivative = 1.00, number of steps used = 11, number of rules used = 10, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.435, Rules used = {1843, 1848, 1885, 1874, 31, 648, 631, 210, 642, 266} \[ \int \frac {c+d x+e x^2}{x^4 \left (a+b x^3\right )^2} \, dx=\frac {\sqrt [3]{b} \arctan \left (\frac {\sqrt [3]{a}-2 \sqrt [3]{b} x}{\sqrt {3} \sqrt [3]{a}}\right ) \left (4 \sqrt [3]{a} e+5 \sqrt [3]{b} d\right )}{3 \sqrt {3} a^{8/3}}+\frac {\sqrt [3]{b} \left (5 \sqrt [3]{b} d-4 \sqrt [3]{a} e\right ) \log \left (a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} x+b^{2/3} x^2\right )}{18 a^{8/3}}-\frac {\sqrt [3]{b} \left (5 \sqrt [3]{b} d-4 \sqrt [3]{a} e\right ) \log \left (\sqrt [3]{a}+\sqrt [3]{b} x\right )}{9 a^{8/3}}+\frac {2 b c \log \left (a+b x^3\right )}{3 a^3}-\frac {2 b c \log (x)}{a^3}-\frac {x \left (-\frac {b^2 c x^2}{a}+b d+b e x\right )}{3 a^2 \left (a+b x^3\right )}-\frac {c}{3 a^2 x^3}-\frac {d}{2 a^2 x^2}-\frac {e}{a^2 x} \]
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Rule 31
Rule 210
Rule 266
Rule 631
Rule 642
Rule 648
Rule 1843
Rule 1848
Rule 1874
Rule 1885
Rubi steps \begin{align*} \text {integral}& = -\frac {x \left (b d+b e x-\frac {b^2 c x^2}{a}\right )}{3 a^2 \left (a+b x^3\right )}-\frac {\int \frac {-3 b c-3 b d x-3 b e x^2+\frac {3 b^2 c x^3}{a}+\frac {2 b^2 d x^4}{a}+\frac {b^2 e x^5}{a}}{x^4 \left (a+b x^3\right )} \, dx}{3 a b} \\ & = -\frac {x \left (b d+b e x-\frac {b^2 c x^2}{a}\right )}{3 a^2 \left (a+b x^3\right )}-\frac {\int \left (-\frac {3 b c}{a x^4}-\frac {3 b d}{a x^3}-\frac {3 b e}{a x^2}+\frac {6 b^2 c}{a^2 x}+\frac {b^2 \left (5 a d+4 a e x-6 b c x^2\right )}{a^2 \left (a+b x^3\right )}\right ) \, dx}{3 a b} \\ & = -\frac {c}{3 a^2 x^3}-\frac {d}{2 a^2 x^2}-\frac {e}{a^2 x}-\frac {x \left (b d+b e x-\frac {b^2 c x^2}{a}\right )}{3 a^2 \left (a+b x^3\right )}-\frac {2 b c \log (x)}{a^3}-\frac {b \int \frac {5 a d+4 a e x-6 b c x^2}{a+b x^3} \, dx}{3 a^3} \\ & = -\frac {c}{3 a^2 x^3}-\frac {d}{2 a^2 x^2}-\frac {e}{a^2 x}-\frac {x \left (b d+b e x-\frac {b^2 c x^2}{a}\right )}{3 a^2 \left (a+b x^3\right )}-\frac {2 b c \log (x)}{a^3}-\frac {b \int \frac {5 a d+4 a e x}{a+b x^3} \, dx}{3 a^3}+\frac {\left (2 b^2 c\right ) \int \frac {x^2}{a+b x^3} \, dx}{a^3} \\ & = -\frac {c}{3 a^2 x^3}-\frac {d}{2 a^2 x^2}-\frac {e}{a^2 x}-\frac {x \left (b d+b e x-\frac {b^2 c x^2}{a}\right )}{3 a^2 \left (a+b x^3\right )}-\frac {2 b c \log (x)}{a^3}+\frac {2 b c \log \left (a+b x^3\right )}{3 a^3}-\frac {b^{2/3} \int \frac {\sqrt [3]{a} \left (10 a \sqrt [3]{b} d+4 a^{4/3} e\right )+\sqrt [3]{b} \left (-5 a \sqrt [3]{b} d+4 a^{4/3} e\right ) x}{a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} x+b^{2/3} x^2} \, dx}{9 a^{11/3}}-\frac {\left (b \left (5 d-\frac {4 \sqrt [3]{a} e}{\sqrt [3]{b}}\right )\right ) \int \frac {1}{\sqrt [3]{a}+\sqrt [3]{b} x} \, dx}{9 a^{8/3}} \\ & = -\frac {c}{3 a^2 x^3}-\frac {d}{2 a^2 x^2}-\frac {e}{a^2 x}-\frac {x \left (b d+b e x-\frac {b^2 c x^2}{a}\right )}{3 a^2 \left (a+b x^3\right )}-\frac {2 b c \log (x)}{a^3}-\frac {\sqrt [3]{b} \left (5 \sqrt [3]{b} d-4 \sqrt [3]{a} e\right ) \log \left (\sqrt [3]{a}+\sqrt [3]{b} x\right )}{9 a^{8/3}}+\frac {2 b c \log \left (a+b x^3\right )}{3 a^3}+\frac {\left (\sqrt [3]{b} \left (5 \sqrt [3]{b} d-4 \sqrt [3]{a} e\right )\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}{18 a^{8/3}}-\frac {\left (b^{2/3} \left (5 \sqrt [3]{b} d+4 \sqrt [3]{a} e\right )\right ) \int \frac {1}{a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} x+b^{2/3} x^2} \, dx}{6 a^{7/3}} \\ & = -\frac {c}{3 a^2 x^3}-\frac {d}{2 a^2 x^2}-\frac {e}{a^2 x}-\frac {x \left (b d+b e x-\frac {b^2 c x^2}{a}\right )}{3 a^2 \left (a+b x^3\right )}-\frac {2 b c \log (x)}{a^3}-\frac {\sqrt [3]{b} \left (5 \sqrt [3]{b} d-4 \sqrt [3]{a} e\right ) \log \left (\sqrt [3]{a}+\sqrt [3]{b} x\right )}{9 a^{8/3}}+\frac {\sqrt [3]{b} \left (5 \sqrt [3]{b} d-4 \sqrt [3]{a} e\right ) \log \left (a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} x+b^{2/3} x^2\right )}{18 a^{8/3}}+\frac {2 b c \log \left (a+b x^3\right )}{3 a^3}-\frac {\left (\sqrt [3]{b} \left (5 \sqrt [3]{b} d+4 \sqrt [3]{a} e\right )\right ) \text {Subst}\left (\int \frac {1}{-3-x^2} \, dx,x,1-\frac {2 \sqrt [3]{b} x}{\sqrt [3]{a}}\right )}{3 a^{8/3}} \\ & = -\frac {c}{3 a^2 x^3}-\frac {d}{2 a^2 x^2}-\frac {e}{a^2 x}-\frac {x \left (b d+b e x-\frac {b^2 c x^2}{a}\right )}{3 a^2 \left (a+b x^3\right )}+\frac {\sqrt [3]{b} \left (5 \sqrt [3]{b} d+4 \sqrt [3]{a} e\right ) \tan ^{-1}\left (\frac {\sqrt [3]{a}-2 \sqrt [3]{b} x}{\sqrt {3} \sqrt [3]{a}}\right )}{3 \sqrt {3} a^{8/3}}-\frac {2 b c \log (x)}{a^3}-\frac {\sqrt [3]{b} \left (5 \sqrt [3]{b} d-4 \sqrt [3]{a} e\right ) \log \left (\sqrt [3]{a}+\sqrt [3]{b} x\right )}{9 a^{8/3}}+\frac {\sqrt [3]{b} \left (5 \sqrt [3]{b} d-4 \sqrt [3]{a} e\right ) \log \left (a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} x+b^{2/3} x^2\right )}{18 a^{8/3}}+\frac {2 b c \log \left (a+b x^3\right )}{3 a^3} \\ \end{align*}
Time = 0.17 (sec) , antiderivative size = 225, normalized size of antiderivative = 0.86 \[ \int \frac {c+d x+e x^2}{x^4 \left (a+b x^3\right )^2} \, dx=\frac {-\frac {6 a c}{x^3}-\frac {9 a d}{x^2}-\frac {18 a e}{x}-\frac {6 a b (c+x (d+e x))}{a+b x^3}+2 \sqrt {3} \sqrt [3]{a} \sqrt [3]{b} \left (5 \sqrt [3]{b} d+4 \sqrt [3]{a} e\right ) \arctan \left (\frac {1-\frac {2 \sqrt [3]{b} x}{\sqrt [3]{a}}}{\sqrt {3}}\right )-36 b c \log (x)+2 \sqrt [3]{b} \left (-5 \sqrt [3]{a} \sqrt [3]{b} d+4 a^{2/3} e\right ) \log \left (\sqrt [3]{a}+\sqrt [3]{b} x\right )+\sqrt [3]{b} \left (5 \sqrt [3]{a} \sqrt [3]{b} d-4 a^{2/3} e\right ) \log \left (a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} x+b^{2/3} x^2\right )+12 b c \log \left (a+b x^3\right )}{18 a^3} \]
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Time = 1.56 (sec) , antiderivative size = 271, normalized size of antiderivative = 1.03
method | result | size |
default | \(-\frac {e}{a^{2} x}-\frac {c}{3 a^{2} x^{3}}-\frac {d}{2 a^{2} x^{2}}-\frac {2 b c \ln \left (x \right )}{a^{3}}-\frac {b \left (\frac {\frac {1}{3} a e \,x^{2}+\frac {1}{3} a d x +\frac {1}{3} a c}{b \,x^{3}+a}+\frac {5 a d \left (\frac {\ln \left (x +\left (\frac {a}{b}\right )^{\frac {1}{3}}\right )}{3 b \left (\frac {a}{b}\right )^{\frac {2}{3}}}-\frac {\ln \left (x^{2}-\left (\frac {a}{b}\right )^{\frac {1}{3}} x +\left (\frac {a}{b}\right )^{\frac {2}{3}}\right )}{6 b \left (\frac {a}{b}\right )^{\frac {2}{3}}}+\frac {\sqrt {3}\, \arctan \left (\frac {\sqrt {3}\, \left (\frac {2 x}{\left (\frac {a}{b}\right )^{\frac {1}{3}}}-1\right )}{3}\right )}{3 b \left (\frac {a}{b}\right )^{\frac {2}{3}}}\right )}{3}+\frac {4 a e \left (-\frac {\ln \left (x +\left (\frac {a}{b}\right )^{\frac {1}{3}}\right )}{3 b \left (\frac {a}{b}\right )^{\frac {1}{3}}}+\frac {\ln \left (x^{2}-\left (\frac {a}{b}\right )^{\frac {1}{3}} x +\left (\frac {a}{b}\right )^{\frac {2}{3}}\right )}{6 b \left (\frac {a}{b}\right )^{\frac {1}{3}}}+\frac {\sqrt {3}\, \arctan \left (\frac {\sqrt {3}\, \left (\frac {2 x}{\left (\frac {a}{b}\right )^{\frac {1}{3}}}-1\right )}{3}\right )}{3 b \left (\frac {a}{b}\right )^{\frac {1}{3}}}\right )}{3}-\frac {2 c \ln \left (b \,x^{3}+a \right )}{3}\right )}{a^{3}}\) | \(271\) |
risch | \(\frac {-\frac {4 b e \,x^{5}}{3 a^{2}}-\frac {5 b d \,x^{4}}{6 a^{2}}-\frac {2 b c \,x^{3}}{3 a^{2}}-\frac {e \,x^{2}}{a}-\frac {x d}{2 a}-\frac {c}{3 a}}{x^{3} \left (b \,x^{3}+a \right )}-\frac {2 b c \ln \left (x \right )}{a^{3}}+\frac {\left (\munderset {\textit {\_R} =\operatorname {RootOf}\left (a^{9} \textit {\_Z}^{3}-18 a^{6} b c \,\textit {\_Z}^{2}+\left (60 a^{4} b d e +108 a^{3} b^{2} c^{2}\right ) \textit {\_Z} -64 a^{2} b \,e^{3}-360 a \,b^{2} c d e +125 a \,b^{2} d^{3}-216 b^{3} c^{3}\right )}{\sum }\textit {\_R} \ln \left (\left (-4 \textit {\_R}^{3} a^{8}+48 a^{5} b c \,\textit {\_R}^{2}+\left (-200 a^{3} b d e -144 a^{2} b^{2} c^{2}\right ) \textit {\_R} +192 a b \,e^{3}+720 b^{2} d c e -375 b^{2} d^{3}\right ) x -4 \textit {\_R}^{2} a^{6} e +\left (-48 a^{3} b c e -25 a^{3} b \,d^{2}\right ) \textit {\_R} +432 b^{2} c^{2} e -450 b^{2} c \,d^{2}\right )\right )}{9}\) | \(275\) |
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Result contains complex when optimal does not.
Time = 1.19 (sec) , antiderivative size = 5373, normalized size of antiderivative = 20.51 \[ \int \frac {c+d x+e x^2}{x^4 \left (a+b x^3\right )^2} \, dx=\text {Too large to display} \]
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Timed out. \[ \int \frac {c+d x+e x^2}{x^4 \left (a+b x^3\right )^2} \, dx=\text {Timed out} \]
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Time = 0.33 (sec) , antiderivative size = 236, normalized size of antiderivative = 0.90 \[ \int \frac {c+d x+e x^2}{x^4 \left (a+b x^3\right )^2} \, dx=-\frac {8 \, b e x^{5} + 5 \, b d x^{4} + 4 \, b c x^{3} + 6 \, a e x^{2} + 3 \, a d x + 2 \, a c}{6 \, {\left (a^{2} b x^{6} + a^{3} x^{3}\right )}} - \frac {2 \, b c \log \left (x\right )}{a^{3}} - \frac {\sqrt {3} {\left (4 \, a e \left (\frac {a}{b}\right )^{\frac {2}{3}} + 5 \, a d \left (\frac {a}{b}\right )^{\frac {1}{3}}\right )} b \arctan \left (\frac {\sqrt {3} {\left (2 \, x - \left (\frac {a}{b}\right )^{\frac {1}{3}}\right )}}{3 \, \left (\frac {a}{b}\right )^{\frac {1}{3}}}\right )}{9 \, a^{4}} + \frac {{\left (12 \, b c \left (\frac {a}{b}\right )^{\frac {2}{3}} - 4 \, a e \left (\frac {a}{b}\right )^{\frac {1}{3}} + 5 \, a d\right )} \log \left (x^{2} - x \left (\frac {a}{b}\right )^{\frac {1}{3}} + \left (\frac {a}{b}\right )^{\frac {2}{3}}\right )}{18 \, a^{3} \left (\frac {a}{b}\right )^{\frac {2}{3}}} + \frac {{\left (6 \, b c \left (\frac {a}{b}\right )^{\frac {2}{3}} + 4 \, a e \left (\frac {a}{b}\right )^{\frac {1}{3}} - 5 \, a d\right )} \log \left (x + \left (\frac {a}{b}\right )^{\frac {1}{3}}\right )}{9 \, a^{3} \left (\frac {a}{b}\right )^{\frac {2}{3}}} \]
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Time = 0.28 (sec) , antiderivative size = 264, normalized size of antiderivative = 1.01 \[ \int \frac {c+d x+e x^2}{x^4 \left (a+b x^3\right )^2} \, dx=\frac {2 \, b c \log \left ({\left | b x^{3} + a \right |}\right )}{3 \, a^{3}} - \frac {2 \, b c \log \left ({\left | x \right |}\right )}{a^{3}} - \frac {\sqrt {3} {\left (5 \, \left (-a b^{2}\right )^{\frac {1}{3}} b d - 4 \, \left (-a b^{2}\right )^{\frac {2}{3}} e\right )} \arctan \left (\frac {\sqrt {3} {\left (2 \, x + \left (-\frac {a}{b}\right )^{\frac {1}{3}}\right )}}{3 \, \left (-\frac {a}{b}\right )^{\frac {1}{3}}}\right )}{9 \, a^{3} b} - \frac {{\left (5 \, \left (-a b^{2}\right )^{\frac {1}{3}} b d + 4 \, \left (-a b^{2}\right )^{\frac {2}{3}} e\right )} \log \left (x^{2} + x \left (-\frac {a}{b}\right )^{\frac {1}{3}} + \left (-\frac {a}{b}\right )^{\frac {2}{3}}\right )}{18 \, a^{3} b} + \frac {{\left (4 \, a^{4} b^{2} e \left (-\frac {a}{b}\right )^{\frac {1}{3}} + 5 \, a^{4} b^{2} d\right )} \left (-\frac {a}{b}\right )^{\frac {1}{3}} \log \left ({\left | x - \left (-\frac {a}{b}\right )^{\frac {1}{3}} \right |}\right )}{9 \, a^{7} b} - \frac {8 \, a b e x^{5} + 5 \, a b d x^{4} + 4 \, a b c x^{3} + 6 \, a^{2} e x^{2} + 3 \, a^{2} d x + 2 \, a^{2} c}{6 \, {\left (b x^{3} + a\right )} a^{3} x^{3}} \]
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Time = 9.29 (sec) , antiderivative size = 537, normalized size of antiderivative = 2.05 \[ \int \frac {c+d x+e x^2}{x^4 \left (a+b x^3\right )^2} \, dx=\left (\sum _{k=1}^3\ln \left (-\frac {50\,b^5\,c\,d^2-48\,b^5\,c^2\,e}{9\,a^6}-\mathrm {root}\left (729\,a^9\,z^3-1458\,a^6\,b\,c\,z^2+540\,a^4\,b\,d\,e\,z+972\,a^3\,b^2\,c^2\,z-360\,a\,b^2\,c\,d\,e-64\,a^2\,b\,e^3+125\,a\,b^2\,d^3-216\,b^3\,c^3,z,k\right )\,\left (\frac {25\,a^3\,b^4\,d^2+48\,c\,e\,a^3\,b^4}{9\,a^6}+\mathrm {root}\left (729\,a^9\,z^3-1458\,a^6\,b\,c\,z^2+540\,a^4\,b\,d\,e\,z+972\,a^3\,b^2\,c^2\,z-360\,a\,b^2\,c\,d\,e-64\,a^2\,b\,e^3+125\,a\,b^2\,d^3-216\,b^3\,c^3,z,k\right )\,\left (4\,b^3\,e+\mathrm {root}\left (729\,a^9\,z^3-1458\,a^6\,b\,c\,z^2+540\,a^4\,b\,d\,e\,z+972\,a^3\,b^2\,c^2\,z-360\,a\,b^2\,c\,d\,e-64\,a^2\,b\,e^3+125\,a\,b^2\,d^3-216\,b^3\,c^3,z,k\right )\,a^2\,b^3\,x\,36-\frac {48\,b^4\,c\,x}{a}\right )+\frac {x\,\left (600\,d\,e\,a^3\,b^4+432\,a^2\,b^5\,c^2\right )}{27\,a^6}\right )+\frac {x\,\left (-125\,b^5\,d^3+240\,c\,b^5\,d\,e+64\,a\,b^4\,e^3\right )}{27\,a^6}\right )\,\mathrm {root}\left (729\,a^9\,z^3-1458\,a^6\,b\,c\,z^2+540\,a^4\,b\,d\,e\,z+972\,a^3\,b^2\,c^2\,z-360\,a\,b^2\,c\,d\,e-64\,a^2\,b\,e^3+125\,a\,b^2\,d^3-216\,b^3\,c^3,z,k\right )\right )-\frac {\frac {c}{3\,a}+\frac {e\,x^2}{a}+\frac {d\,x}{2\,a}+\frac {2\,b\,c\,x^3}{3\,a^2}+\frac {5\,b\,d\,x^4}{6\,a^2}+\frac {4\,b\,e\,x^5}{3\,a^2}}{b\,x^6+a\,x^3}-\frac {2\,b\,c\,\ln \left (x\right )}{a^3} \]
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