Integrand size = 24, antiderivative size = 166 \[ \int \frac {1}{(c e+d e x)^2 \left (a+b (c+d x)^3\right )} \, dx=-\frac {1}{a d e^2 (c+d x)}+\frac {\sqrt [3]{b} \arctan \left (\frac {\sqrt [3]{a}-2 \sqrt [3]{b} (c+d x)}{\sqrt {3} \sqrt [3]{a}}\right )}{\sqrt {3} a^{4/3} d e^2}+\frac {\sqrt [3]{b} \log \left (\sqrt [3]{a}+\sqrt [3]{b} (c+d x)\right )}{3 a^{4/3} d e^2}-\frac {\sqrt [3]{b} \log \left (a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} (c+d x)+b^{2/3} (c+d x)^2\right )}{6 a^{4/3} d e^2} \]
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Time = 0.10 (sec) , antiderivative size = 166, normalized size of antiderivative = 1.00, number of steps used = 8, number of rules used = 8, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.333, Rules used = {379, 331, 298, 31, 648, 631, 210, 642} \[ \int \frac {1}{(c e+d e x)^2 \left (a+b (c+d x)^3\right )} \, dx=\frac {\sqrt [3]{b} \arctan \left (\frac {\sqrt [3]{a}-2 \sqrt [3]{b} (c+d x)}{\sqrt {3} \sqrt [3]{a}}\right )}{\sqrt {3} a^{4/3} d e^2}-\frac {\sqrt [3]{b} \log \left (a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} (c+d x)+b^{2/3} (c+d x)^2\right )}{6 a^{4/3} d e^2}+\frac {\sqrt [3]{b} \log \left (\sqrt [3]{a}+\sqrt [3]{b} (c+d x)\right )}{3 a^{4/3} d e^2}-\frac {1}{a d e^2 (c+d x)} \]
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Rule 31
Rule 210
Rule 298
Rule 331
Rule 379
Rule 631
Rule 642
Rule 648
Rubi steps \begin{align*} \text {integral}& = \frac {\text {Subst}\left (\int \frac {1}{x^2 \left (a+b x^3\right )} \, dx,x,c+d x\right )}{d e^2} \\ & = -\frac {1}{a d e^2 (c+d x)}-\frac {b \text {Subst}\left (\int \frac {x}{a+b x^3} \, dx,x,c+d x\right )}{a d e^2} \\ & = -\frac {1}{a d e^2 (c+d x)}+\frac {b^{2/3} \text {Subst}\left (\int \frac {1}{\sqrt [3]{a}+\sqrt [3]{b} x} \, dx,x,c+d x\right )}{3 a^{4/3} d e^2}-\frac {b^{2/3} \text {Subst}\left (\int \frac {\sqrt [3]{a}+\sqrt [3]{b} x}{a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} x+b^{2/3} x^2} \, dx,x,c+d x\right )}{3 a^{4/3} d e^2} \\ & = -\frac {1}{a d e^2 (c+d x)}+\frac {\sqrt [3]{b} \log \left (\sqrt [3]{a}+\sqrt [3]{b} (c+d x)\right )}{3 a^{4/3} d e^2}-\frac {\sqrt [3]{b} \text {Subst}\left (\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,x,c+d x\right )}{6 a^{4/3} d e^2}-\frac {b^{2/3} \text {Subst}\left (\int \frac {1}{a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} x+b^{2/3} x^2} \, dx,x,c+d x\right )}{2 a d e^2} \\ & = -\frac {1}{a d e^2 (c+d x)}+\frac {\sqrt [3]{b} \log \left (\sqrt [3]{a}+\sqrt [3]{b} (c+d x)\right )}{3 a^{4/3} d e^2}-\frac {\sqrt [3]{b} \log \left (a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} (c+d x)+b^{2/3} (c+d x)^2\right )}{6 a^{4/3} d e^2}-\frac {\sqrt [3]{b} \text {Subst}\left (\int \frac {1}{-3-x^2} \, dx,x,1-\frac {2 \sqrt [3]{b} (c+d x)}{\sqrt [3]{a}}\right )}{a^{4/3} d e^2} \\ & = -\frac {1}{a d e^2 (c+d x)}+\frac {\sqrt [3]{b} \tan ^{-1}\left (\frac {1-\frac {2 \sqrt [3]{b} (c+d x)}{\sqrt [3]{a}}}{\sqrt {3}}\right )}{\sqrt {3} a^{4/3} d e^2}+\frac {\sqrt [3]{b} \log \left (\sqrt [3]{a}+\sqrt [3]{b} (c+d x)\right )}{3 a^{4/3} d e^2}-\frac {\sqrt [3]{b} \log \left (a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} (c+d x)+b^{2/3} (c+d x)^2\right )}{6 a^{4/3} d e^2} \\ \end{align*}
Time = 0.05 (sec) , antiderivative size = 143, normalized size of antiderivative = 0.86 \[ \int \frac {1}{(c e+d e x)^2 \left (a+b (c+d x)^3\right )} \, dx=\frac {-\frac {6 \sqrt [3]{a}}{c+d x}-2 \sqrt {3} \sqrt [3]{b} \arctan \left (\frac {-\sqrt [3]{a}+2 \sqrt [3]{b} (c+d x)}{\sqrt {3} \sqrt [3]{a}}\right )+2 \sqrt [3]{b} \log \left (\sqrt [3]{a}+\sqrt [3]{b} (c+d x)\right )-\sqrt [3]{b} \log \left (a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} (c+d x)+b^{2/3} (c+d x)^2\right )}{6 a^{4/3} d e^2} \]
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Result contains higher order function than in optimal. Order 9 vs. order 3.
Time = 4.12 (sec) , antiderivative size = 96, normalized size of antiderivative = 0.58
method | result | size |
default | \(\frac {-\frac {\munderset {\textit {\_R} =\operatorname {RootOf}\left (b \,d^{3} \textit {\_Z}^{3}+3 b c \,d^{2} \textit {\_Z}^{2}+3 b \,c^{2} d \textit {\_Z} +c^{3} b +a \right )}{\sum }\frac {\left (\textit {\_R} d +c \right ) \ln \left (x -\textit {\_R} \right )}{d^{2} \textit {\_R}^{2}+2 c d \textit {\_R} +c^{2}}}{3 d a}-\frac {1}{a d \left (d x +c \right )}}{e^{2}}\) | \(96\) |
risch | \(-\frac {1}{a d \,e^{2} \left (d x +c \right )}+\frac {\left (\munderset {\textit {\_R} =\operatorname {RootOf}\left (a^{4} d^{3} e^{6} \textit {\_Z}^{3}-b \right )}{\sum }\textit {\_R} \ln \left (\left (-4 a^{4} d^{4} e^{6} \textit {\_R}^{3}+3 b d \right ) x -4 a^{4} c \,d^{3} e^{6} \textit {\_R}^{3}-a^{3} d^{2} e^{4} \textit {\_R}^{2}+3 b c \right )\right )}{3}\) | \(101\) |
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Time = 0.25 (sec) , antiderivative size = 156, normalized size of antiderivative = 0.94 \[ \int \frac {1}{(c e+d e x)^2 \left (a+b (c+d x)^3\right )} \, dx=-\frac {2 \, \sqrt {3} {\left (d x + c\right )} \left (\frac {b}{a}\right )^{\frac {1}{3}} \arctan \left (\frac {2}{3} \, \sqrt {3} {\left (d x + c\right )} \left (\frac {b}{a}\right )^{\frac {1}{3}} - \frac {1}{3} \, \sqrt {3}\right ) + {\left (d x + c\right )} \left (\frac {b}{a}\right )^{\frac {1}{3}} \log \left (b d^{2} x^{2} + 2 \, b c d x + b c^{2} - {\left (a d x + a c\right )} \left (\frac {b}{a}\right )^{\frac {2}{3}} + a \left (\frac {b}{a}\right )^{\frac {1}{3}}\right ) - 2 \, {\left (d x + c\right )} \left (\frac {b}{a}\right )^{\frac {1}{3}} \log \left (b d x + b c + a \left (\frac {b}{a}\right )^{\frac {2}{3}}\right ) + 6}{6 \, {\left (a d^{2} e^{2} x + a c d e^{2}\right )}} \]
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Time = 0.31 (sec) , antiderivative size = 54, normalized size of antiderivative = 0.33 \[ \int \frac {1}{(c e+d e x)^2 \left (a+b (c+d x)^3\right )} \, dx=- \frac {1}{a c d e^{2} + a d^{2} e^{2} x} + \frac {\operatorname {RootSum} {\left (27 t^{3} a^{4} - b, \left ( t \mapsto t \log {\left (x + \frac {9 t^{2} a^{3} + b c}{b d} \right )} \right )\right )}}{d e^{2}} \]
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\[ \int \frac {1}{(c e+d e x)^2 \left (a+b (c+d x)^3\right )} \, dx=\int { \frac {1}{{\left ({\left (d x + c\right )}^{3} b + a\right )} {\left (d e x + c e\right )}^{2}} \,d x } \]
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Time = 0.31 (sec) , antiderivative size = 229, normalized size of antiderivative = 1.38 \[ \int \frac {1}{(c e+d e x)^2 \left (a+b (c+d x)^3\right )} \, dx=\frac {\left (\frac {b}{a d^{3} e^{6}}\right )^{\frac {1}{3}} \log \left ({\left | -\left (\frac {b}{a d^{3} e^{6}}\right )^{\frac {1}{3}} - \frac {1}{{\left (d e x + c e\right )} d e} \right |}\right )}{3 \, a} - \frac {\sqrt {3} \left (a^{2} b\right )^{\frac {1}{3}} \arctan \left (\frac {\sqrt {3} {\left (\left (\frac {b}{a d^{3} e^{6}}\right )^{\frac {1}{3}} - \frac {2}{{\left (d e x + c e\right )} d e}\right )}}{3 \, \left (\frac {b}{a d^{3} e^{6}}\right )^{\frac {1}{3}}}\right )}{3 \, a^{2} d e^{2}} - \frac {\left (a^{2} b\right )^{\frac {1}{3}} \log \left (\left (\frac {b}{a d^{3} e^{6}}\right )^{\frac {2}{3}} - \frac {\left (\frac {b}{a d^{3} e^{6}}\right )^{\frac {1}{3}}}{{\left (d e x + c e\right )} d e} + \frac {1}{{\left (d e x + c e\right )}^{2} d^{2} e^{2}}\right )}{6 \, a^{2} d e^{2}} - \frac {1}{{\left (d e x + c e\right )} a d e} \]
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Time = 5.88 (sec) , antiderivative size = 154, normalized size of antiderivative = 0.93 \[ \int \frac {1}{(c e+d e x)^2 \left (a+b (c+d x)^3\right )} \, dx=\frac {b^{1/3}\,\ln \left (b^{1/3}\,c+a^{1/3}+b^{1/3}\,d\,x\right )}{3\,a^{4/3}\,d\,e^2}-\frac {1}{a\,d\,\left (c\,e^2+d\,e^2\,x\right )}-\frac {b^{1/3}\,\ln \left (2\,b^{1/3}\,c-a^{1/3}+2\,b^{1/3}\,d\,x+\sqrt {3}\,a^{1/3}\,1{}\mathrm {i}\right )\,\left (\frac {1}{2}+\frac {\sqrt {3}\,1{}\mathrm {i}}{2}\right )}{3\,a^{4/3}\,d\,e^2}+\frac {b^{1/3}\,\ln \left (2\,b^{1/3}\,c-a^{1/3}+2\,b^{1/3}\,d\,x-\sqrt {3}\,a^{1/3}\,1{}\mathrm {i}\right )\,\left (-\frac {1}{6}+\frac {\sqrt {3}\,1{}\mathrm {i}}{6}\right )}{a^{4/3}\,d\,e^2} \]
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