Integrand size = 21, antiderivative size = 219 \[ \int \frac {1}{(c+d x)^2 \left (a+b (c+d x)^3\right )^3} \, dx=-\frac {14}{9 a^3 d (c+d x)}+\frac {1}{6 a d (c+d x) \left (a+b (c+d x)^3\right )^2}+\frac {7}{18 a^2 d (c+d x) \left (a+b (c+d x)^3\right )}+\frac {14 \sqrt [3]{b} \arctan \left (\frac {\sqrt [3]{a}-2 \sqrt [3]{b} (c+d x)}{\sqrt {3} \sqrt [3]{a}}\right )}{9 \sqrt {3} a^{10/3} d}+\frac {14 \sqrt [3]{b} \log \left (\sqrt [3]{a}+\sqrt [3]{b} (c+d x)\right )}{27 a^{10/3} d}-\frac {7 \sqrt [3]{b} \log \left (a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} (c+d x)+b^{2/3} (c+d x)^2\right )}{27 a^{10/3} d} \]
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Time = 0.15 (sec) , antiderivative size = 219, normalized size of antiderivative = 1.00, number of steps used = 10, number of rules used = 9, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.429, Rules used = {379, 296, 331, 298, 31, 648, 631, 210, 642} \[ \int \frac {1}{(c+d x)^2 \left (a+b (c+d x)^3\right )^3} \, dx=\frac {14 \sqrt [3]{b} \arctan \left (\frac {\sqrt [3]{a}-2 \sqrt [3]{b} (c+d x)}{\sqrt {3} \sqrt [3]{a}}\right )}{9 \sqrt {3} a^{10/3} d}-\frac {7 \sqrt [3]{b} \log \left (a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} (c+d x)+b^{2/3} (c+d x)^2\right )}{27 a^{10/3} d}+\frac {14 \sqrt [3]{b} \log \left (\sqrt [3]{a}+\sqrt [3]{b} (c+d x)\right )}{27 a^{10/3} d}-\frac {14}{9 a^3 d (c+d x)}+\frac {7}{18 a^2 d (c+d x) \left (a+b (c+d x)^3\right )}+\frac {1}{6 a d (c+d x) \left (a+b (c+d x)^3\right )^2} \]
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Rule 31
Rule 210
Rule 296
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 )^3} \, dx,x,c+d x\right )}{d} \\ & = \frac {1}{6 a d (c+d x) \left (a+b (c+d x)^3\right )^2}+\frac {7 \text {Subst}\left (\int \frac {1}{x^2 \left (a+b x^3\right )^2} \, dx,x,c+d x\right )}{6 a d} \\ & = \frac {1}{6 a d (c+d x) \left (a+b (c+d x)^3\right )^2}+\frac {7}{18 a^2 d (c+d x) \left (a+b (c+d x)^3\right )}+\frac {14 \text {Subst}\left (\int \frac {1}{x^2 \left (a+b x^3\right )} \, dx,x,c+d x\right )}{9 a^2 d} \\ & = -\frac {14}{9 a^3 d (c+d x)}+\frac {1}{6 a d (c+d x) \left (a+b (c+d x)^3\right )^2}+\frac {7}{18 a^2 d (c+d x) \left (a+b (c+d x)^3\right )}-\frac {(14 b) \text {Subst}\left (\int \frac {x}{a+b x^3} \, dx,x,c+d x\right )}{9 a^3 d} \\ & = -\frac {14}{9 a^3 d (c+d x)}+\frac {1}{6 a d (c+d x) \left (a+b (c+d x)^3\right )^2}+\frac {7}{18 a^2 d (c+d x) \left (a+b (c+d x)^3\right )}+\frac {\left (14 b^{2/3}\right ) \text {Subst}\left (\int \frac {1}{\sqrt [3]{a}+\sqrt [3]{b} x} \, dx,x,c+d x\right )}{27 a^{10/3} d}-\frac {\left (14 b^{2/3}\right ) \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 )}{27 a^{10/3} d} \\ & = -\frac {14}{9 a^3 d (c+d x)}+\frac {1}{6 a d (c+d x) \left (a+b (c+d x)^3\right )^2}+\frac {7}{18 a^2 d (c+d x) \left (a+b (c+d x)^3\right )}+\frac {14 \sqrt [3]{b} \log \left (\sqrt [3]{a}+\sqrt [3]{b} (c+d x)\right )}{27 a^{10/3} d}-\frac {\left (7 \sqrt [3]{b}\right ) \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 )}{27 a^{10/3} d}-\frac {\left (7 b^{2/3}\right ) \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 )}{9 a^3 d} \\ & = -\frac {14}{9 a^3 d (c+d x)}+\frac {1}{6 a d (c+d x) \left (a+b (c+d x)^3\right )^2}+\frac {7}{18 a^2 d (c+d x) \left (a+b (c+d x)^3\right )}+\frac {14 \sqrt [3]{b} \log \left (\sqrt [3]{a}+\sqrt [3]{b} (c+d x)\right )}{27 a^{10/3} d}-\frac {7 \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 )}{27 a^{10/3} d}-\frac {\left (14 \sqrt [3]{b}\right ) \text {Subst}\left (\int \frac {1}{-3-x^2} \, dx,x,1-\frac {2 \sqrt [3]{b} (c+d x)}{\sqrt [3]{a}}\right )}{9 a^{10/3} d} \\ & = -\frac {14}{9 a^3 d (c+d x)}+\frac {1}{6 a d (c+d x) \left (a+b (c+d x)^3\right )^2}+\frac {7}{18 a^2 d (c+d x) \left (a+b (c+d x)^3\right )}+\frac {14 \sqrt [3]{b} \tan ^{-1}\left (\frac {1-\frac {2 \sqrt [3]{b} (c+d x)}{\sqrt [3]{a}}}{\sqrt {3}}\right )}{9 \sqrt {3} a^{10/3} d}+\frac {14 \sqrt [3]{b} \log \left (\sqrt [3]{a}+\sqrt [3]{b} (c+d x)\right )}{27 a^{10/3} d}-\frac {7 \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 )}{27 a^{10/3} d} \\ \end{align*}
Time = 0.14 (sec) , antiderivative size = 196, normalized size of antiderivative = 0.89 \[ \int \frac {1}{(c+d x)^2 \left (a+b (c+d x)^3\right )^3} \, dx=\frac {-\frac {54 \sqrt [3]{a}}{c+d x}-\frac {9 a^{4/3} b (c+d x)^2}{\left (a+b (c+d x)^3\right )^2}-\frac {30 \sqrt [3]{a} b (c+d x)^2}{a+b (c+d x)^3}-28 \sqrt {3} \sqrt [3]{b} \arctan \left (\frac {-\sqrt [3]{a}+2 \sqrt [3]{b} (c+d x)}{\sqrt {3} \sqrt [3]{a}}\right )+28 \sqrt [3]{b} \log \left (\sqrt [3]{a}+\sqrt [3]{b} (c+d x)\right )-14 \sqrt [3]{b} \log \left (a^{2/3}-\sqrt [3]{a} \sqrt [3]{b} (c+d x)+b^{2/3} (c+d x)^2\right )}{54 a^{10/3} d} \]
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Result contains higher order function than in optimal. Order 9 vs. order 3.
Time = 3.92 (sec) , antiderivative size = 215, normalized size of antiderivative = 0.98
method | result | size |
default | \(-\frac {1}{a^{3} d \left (d x +c \right )}-\frac {b \left (\frac {\frac {5 b \,d^{4} x^{5}}{9}+\frac {25 b c \,d^{3} x^{4}}{9}+\frac {50 d^{2} b \,c^{2} x^{3}}{9}+\left (\frac {50}{9} b \,c^{3} d +\frac {13}{18} a d \right ) x^{2}+\frac {c \left (25 c^{3} b +13 a \right ) x}{9}+\frac {c^{2} \left (10 c^{3} b +13 a \right )}{18 d}}{\left (b \,d^{3} x^{3}+3 b c \,d^{2} x^{2}+3 b \,c^{2} d x +c^{3} b +a \right )^{2}}+\frac {14 \left (\munderset {\textit {\_R} =\operatorname {RootOf}\left (b \,d^{3} \textit {\_Z}^{3}+3 b c \,d^{2} \textit {\_Z}^{2}+3 b \,c^{2} d \textit {\_Z} +c^{3} b +a \right )}{\sum }\frac {\left (\textit {\_R} d +c \right ) \ln \left (x -\textit {\_R} \right )}{d^{2} \textit {\_R}^{2}+2 c d \textit {\_R} +c^{2}}\right )}{27 b d}\right )}{a^{3}}\) | \(215\) |
risch | \(\frac {-\frac {14 b^{2} d^{5} x^{6}}{9 a^{3}}-\frac {28 b^{2} c \,d^{4} x^{5}}{3 a^{3}}-\frac {70 b^{2} c^{2} d^{3} x^{4}}{3 a^{3}}-\frac {7 b \,d^{2} \left (80 c^{3} b +7 a \right ) x^{3}}{18 a^{3}}-\frac {7 b c d \left (20 c^{3} b +7 a \right ) x^{2}}{6 a^{3}}-\frac {7 \left (8 c^{3} b +7 a \right ) b \,c^{2} x}{6 a^{3}}-\frac {28 b^{2} c^{6}+49 a b \,c^{3}+18 a^{2}}{18 d \,a^{3}}}{\left (d x +c \right ) \left (b \,d^{3} x^{3}+3 b c \,d^{2} x^{2}+3 b \,c^{2} d x +c^{3} b +a \right )^{2}}+\frac {14 \left (\munderset {\textit {\_R} =\operatorname {RootOf}\left (a^{10} d^{3} \textit {\_Z}^{3}-b \right )}{\sum }\textit {\_R} \ln \left (\left (-4 a^{10} d^{4} \textit {\_R}^{3}+3 b d \right ) x -4 a^{10} c \,d^{3} \textit {\_R}^{3}-a^{7} d^{2} \textit {\_R}^{2}+3 b c \right )\right )}{27}\) | \(253\) |
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Leaf count of result is larger than twice the leaf count of optimal. 855 vs. \(2 (176) = 352\).
Time = 0.28 (sec) , antiderivative size = 855, normalized size of antiderivative = 3.90 \[ \int \frac {1}{(c+d x)^2 \left (a+b (c+d x)^3\right )^3} \, dx=-\frac {84 \, b^{2} d^{6} x^{6} + 504 \, b^{2} c d^{5} x^{5} + 1260 \, b^{2} c^{2} d^{4} x^{4} + 84 \, b^{2} c^{6} + 21 \, {\left (80 \, b^{2} c^{3} + 7 \, a b\right )} d^{3} x^{3} + 147 \, a b c^{3} + 63 \, {\left (20 \, b^{2} c^{4} + 7 \, a b c\right )} d^{2} x^{2} + 63 \, {\left (8 \, b^{2} c^{5} + 7 \, a b c^{2}\right )} d x + 28 \, \sqrt {3} {\left (b^{2} d^{7} x^{7} + 7 \, b^{2} c d^{6} x^{6} + 21 \, b^{2} c^{2} d^{5} x^{5} + b^{2} c^{7} + {\left (35 \, b^{2} c^{3} + 2 \, a b\right )} d^{4} x^{4} + {\left (35 \, b^{2} c^{4} + 8 \, a b c\right )} d^{3} x^{3} + 2 \, a b c^{4} + 3 \, {\left (7 \, b^{2} c^{5} + 4 \, a b c^{2}\right )} d^{2} x^{2} + a^{2} c + {\left (7 \, b^{2} c^{6} + 8 \, a b c^{3} + a^{2}\right )} d x\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 ) + 14 \, {\left (b^{2} d^{7} x^{7} + 7 \, b^{2} c d^{6} x^{6} + 21 \, b^{2} c^{2} d^{5} x^{5} + b^{2} c^{7} + {\left (35 \, b^{2} c^{3} + 2 \, a b\right )} d^{4} x^{4} + {\left (35 \, b^{2} c^{4} + 8 \, a b c\right )} d^{3} x^{3} + 2 \, a b c^{4} + 3 \, {\left (7 \, b^{2} c^{5} + 4 \, a b c^{2}\right )} d^{2} x^{2} + a^{2} c + {\left (7 \, b^{2} c^{6} + 8 \, a b c^{3} + a^{2}\right )} d x\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 ) - 28 \, {\left (b^{2} d^{7} x^{7} + 7 \, b^{2} c d^{6} x^{6} + 21 \, b^{2} c^{2} d^{5} x^{5} + b^{2} c^{7} + {\left (35 \, b^{2} c^{3} + 2 \, a b\right )} d^{4} x^{4} + {\left (35 \, b^{2} c^{4} + 8 \, a b c\right )} d^{3} x^{3} + 2 \, a b c^{4} + 3 \, {\left (7 \, b^{2} c^{5} + 4 \, a b c^{2}\right )} d^{2} x^{2} + a^{2} c + {\left (7 \, b^{2} c^{6} + 8 \, a b c^{3} + a^{2}\right )} d x\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 ) + 54 \, a^{2}}{54 \, {\left (a^{3} b^{2} d^{8} x^{7} + 7 \, a^{3} b^{2} c d^{7} x^{6} + 21 \, a^{3} b^{2} c^{2} d^{6} x^{5} + {\left (35 \, a^{3} b^{2} c^{3} + 2 \, a^{4} b\right )} d^{5} x^{4} + {\left (35 \, a^{3} b^{2} c^{4} + 8 \, a^{4} b c\right )} d^{4} x^{3} + 3 \, {\left (7 \, a^{3} b^{2} c^{5} + 4 \, a^{4} b c^{2}\right )} d^{3} x^{2} + {\left (7 \, a^{3} b^{2} c^{6} + 8 \, a^{4} b c^{3} + a^{5}\right )} d^{2} x + {\left (a^{3} b^{2} c^{7} + 2 \, a^{4} b c^{4} + a^{5} c\right )} d\right )}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 391 vs. \(2 (194) = 388\).
Time = 2.04 (sec) , antiderivative size = 391, normalized size of antiderivative = 1.79 \[ \int \frac {1}{(c+d x)^2 \left (a+b (c+d x)^3\right )^3} \, dx=\frac {- 18 a^{2} - 49 a b c^{3} - 28 b^{2} c^{6} - 420 b^{2} c^{2} d^{4} x^{4} - 168 b^{2} c d^{5} x^{5} - 28 b^{2} d^{6} x^{6} + x^{3} \left (- 49 a b d^{3} - 560 b^{2} c^{3} d^{3}\right ) + x^{2} \left (- 147 a b c d^{2} - 420 b^{2} c^{4} d^{2}\right ) + x \left (- 147 a b c^{2} d - 168 b^{2} c^{5} d\right )}{18 a^{5} c d + 36 a^{4} b c^{4} d + 18 a^{3} b^{2} c^{7} d + 378 a^{3} b^{2} c^{2} d^{6} x^{5} + 126 a^{3} b^{2} c d^{7} x^{6} + 18 a^{3} b^{2} d^{8} x^{7} + x^{4} \cdot \left (36 a^{4} b d^{5} + 630 a^{3} b^{2} c^{3} d^{5}\right ) + x^{3} \cdot \left (144 a^{4} b c d^{4} + 630 a^{3} b^{2} c^{4} d^{4}\right ) + x^{2} \cdot \left (216 a^{4} b c^{2} d^{3} + 378 a^{3} b^{2} c^{5} d^{3}\right ) + x \left (18 a^{5} d^{2} + 144 a^{4} b c^{3} d^{2} + 126 a^{3} b^{2} c^{6} d^{2}\right )} + \frac {\operatorname {RootSum} {\left (19683 t^{3} a^{10} - 2744 b, \left ( t \mapsto t \log {\left (x + \frac {729 t^{2} a^{7} + 196 b c}{196 b d} \right )} \right )\right )}}{d} \]
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\[ \int \frac {1}{(c+d x)^2 \left (a+b (c+d x)^3\right )^3} \, dx=\int { \frac {1}{{\left ({\left (d x + c\right )}^{3} b + a\right )}^{3} {\left (d x + c\right )}^{2}} \,d x } \]
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Time = 0.30 (sec) , antiderivative size = 223, normalized size of antiderivative = 1.02 \[ \int \frac {1}{(c+d x)^2 \left (a+b (c+d x)^3\right )^3} \, dx=\frac {14 \, \left (\frac {b}{a d^{3}}\right )^{\frac {1}{3}} \log \left ({\left | -\left (\frac {b}{a d^{3}}\right )^{\frac {1}{3}} - \frac {1}{{\left (d x + c\right )} d} \right |}\right )}{27 \, a^{3}} - \frac {14 \, \sqrt {3} \left (a^{2} b\right )^{\frac {1}{3}} \arctan \left (\frac {\sqrt {3} {\left (\left (\frac {b}{a d^{3}}\right )^{\frac {1}{3}} - \frac {2}{{\left (d x + c\right )} d}\right )}}{3 \, \left (\frac {b}{a d^{3}}\right )^{\frac {1}{3}}}\right )}{27 \, a^{4} d} - \frac {7 \, \left (a^{2} b\right )^{\frac {1}{3}} \log \left (\left (\frac {b}{a d^{3}}\right )^{\frac {2}{3}} - \frac {\left (\frac {b}{a d^{3}}\right )^{\frac {1}{3}}}{{\left (d x + c\right )} d} + \frac {1}{{\left (d x + c\right )}^{2} d^{2}}\right )}{27 \, a^{4} d} - \frac {\frac {10 \, b^{2}}{{\left (d x + c\right )} d} + \frac {13 \, a b}{{\left (d x + c\right )}^{4} d}}{18 \, a^{3} {\left (b + \frac {a}{{\left (d x + c\right )}^{3}}\right )}^{2}} - \frac {1}{{\left (d x + c\right )} a^{3} d} \]
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Time = 7.00 (sec) , antiderivative size = 431, normalized size of antiderivative = 1.97 \[ \int \frac {1}{(c+d x)^2 \left (a+b (c+d x)^3\right )^3} \, dx=\frac {14\,b^{1/3}\,\ln \left (b^{1/3}\,c+a^{1/3}+b^{1/3}\,d\,x\right )}{27\,a^{10/3}\,d}-\frac {\frac {18\,a^2+49\,a\,b\,c^3+28\,b^2\,c^6}{18\,a^3\,d}+\frac {7\,x^2\,\left (20\,d\,b^2\,c^4+7\,a\,d\,b\,c\right )}{6\,a^3}+\frac {7\,x\,\left (8\,b^2\,c^5+7\,a\,b\,c^2\right )}{6\,a^3}+\frac {7\,x^3\,\left (80\,b^2\,c^3\,d^2+7\,a\,b\,d^2\right )}{18\,a^3}+\frac {14\,b^2\,d^5\,x^6}{9\,a^3}+\frac {70\,b^2\,c^2\,d^3\,x^4}{3\,a^3}+\frac {28\,b^2\,c\,d^4\,x^5}{3\,a^3}}{x^4\,\left (35\,b^2\,c^3\,d^4+2\,a\,b\,d^4\right )+x\,\left (d\,a^2+8\,d\,a\,b\,c^3+7\,d\,b^2\,c^6\right )+a^2\,c+x^3\,\left (35\,b^2\,c^4\,d^3+8\,a\,b\,c\,d^3\right )+b^2\,c^7+x^2\,\left (21\,b^2\,c^5\,d^2+12\,a\,b\,c^2\,d^2\right )+b^2\,d^7\,x^7+2\,a\,b\,c^4+7\,b^2\,c\,d^6\,x^6+21\,b^2\,c^2\,d^5\,x^5}+\frac {14\,b^{1/3}\,\ln \left (2\,b^{1/3}\,c-a^{1/3}+2\,b^{1/3}\,d\,x-\sqrt {3}\,a^{1/3}\,1{}\mathrm {i}\right )\,\left (-\frac {1}{2}+\frac {\sqrt {3}\,1{}\mathrm {i}}{2}\right )}{27\,a^{10/3}\,d}-\frac {14\,b^{1/3}\,\ln \left (2\,b^{1/3}\,c-a^{1/3}+2\,b^{1/3}\,d\,x+\sqrt {3}\,a^{1/3}\,1{}\mathrm {i}\right )\,\left (\frac {1}{2}+\frac {\sqrt {3}\,1{}\mathrm {i}}{2}\right )}{27\,a^{10/3}\,d} \]
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