Integrand size = 21, antiderivative size = 121 \[ \int F^{a+\frac {b}{(c+d x)^3}} (c+d x)^8 \, dx=\frac {F^{a+\frac {b}{(c+d x)^3}} (c+d x)^9}{9 d}+\frac {b F^{a+\frac {b}{(c+d x)^3}} (c+d x)^6 \log (F)}{18 d}+\frac {b^2 F^{a+\frac {b}{(c+d x)^3}} (c+d x)^3 \log ^2(F)}{18 d}-\frac {b^3 F^a \operatorname {ExpIntegralEi}\left (\frac {b \log (F)}{(c+d x)^3}\right ) \log ^3(F)}{18 d} \]
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Time = 0.12 (sec) , antiderivative size = 121, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.095, Rules used = {2245, 2241} \[ \int F^{a+\frac {b}{(c+d x)^3}} (c+d x)^8 \, dx=-\frac {b^3 F^a \log ^3(F) \operatorname {ExpIntegralEi}\left (\frac {b \log (F)}{(c+d x)^3}\right )}{18 d}+\frac {b^2 \log ^2(F) (c+d x)^3 F^{a+\frac {b}{(c+d x)^3}}}{18 d}+\frac {(c+d x)^9 F^{a+\frac {b}{(c+d x)^3}}}{9 d}+\frac {b \log (F) (c+d x)^6 F^{a+\frac {b}{(c+d x)^3}}}{18 d} \]
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Rule 2241
Rule 2245
Rubi steps \begin{align*} \text {integral}& = \frac {F^{a+\frac {b}{(c+d x)^3}} (c+d x)^9}{9 d}+\frac {1}{3} (b \log (F)) \int F^{a+\frac {b}{(c+d x)^3}} (c+d x)^5 \, dx \\ & = \frac {F^{a+\frac {b}{(c+d x)^3}} (c+d x)^9}{9 d}+\frac {b F^{a+\frac {b}{(c+d x)^3}} (c+d x)^6 \log (F)}{18 d}+\frac {1}{6} \left (b^2 \log ^2(F)\right ) \int F^{a+\frac {b}{(c+d x)^3}} (c+d x)^2 \, dx \\ & = \frac {F^{a+\frac {b}{(c+d x)^3}} (c+d x)^9}{9 d}+\frac {b F^{a+\frac {b}{(c+d x)^3}} (c+d x)^6 \log (F)}{18 d}+\frac {b^2 F^{a+\frac {b}{(c+d x)^3}} (c+d x)^3 \log ^2(F)}{18 d}+\frac {1}{6} \left (b^3 \log ^3(F)\right ) \int \frac {F^{a+\frac {b}{(c+d x)^3}}}{c+d x} \, dx \\ & = \frac {F^{a+\frac {b}{(c+d x)^3}} (c+d x)^9}{9 d}+\frac {b F^{a+\frac {b}{(c+d x)^3}} (c+d x)^6 \log (F)}{18 d}+\frac {b^2 F^{a+\frac {b}{(c+d x)^3}} (c+d x)^3 \log ^2(F)}{18 d}-\frac {b^3 F^a \text {Ei}\left (\frac {b \log (F)}{(c+d x)^3}\right ) \log ^3(F)}{18 d} \\ \end{align*}
Time = 0.13 (sec) , antiderivative size = 96, normalized size of antiderivative = 0.79 \[ \int F^{a+\frac {b}{(c+d x)^3}} (c+d x)^8 \, dx=\frac {F^a \left (2 F^{\frac {b}{(c+d x)^3}} (c+d x)^9+b \log (F) \left (F^{\frac {b}{(c+d x)^3}} (c+d x)^6+b \log (F) \left (F^{\frac {b}{(c+d x)^3}} (c+d x)^3-b \operatorname {ExpIntegralEi}\left (\frac {b \log (F)}{(c+d x)^3}\right ) \log (F)\right )\right )\right )}{18 d} \]
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\[\int F^{a +\frac {b}{\left (d x +c \right )^{3}}} \left (d x +c \right )^{8}d x\]
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Leaf count of result is larger than twice the leaf count of optimal. 330 vs. \(2 (113) = 226\).
Time = 0.30 (sec) , antiderivative size = 330, normalized size of antiderivative = 2.73 \[ \int F^{a+\frac {b}{(c+d x)^3}} (c+d x)^8 \, dx=-\frac {F^{a} b^{3} {\rm Ei}\left (\frac {b \log \left (F\right )}{d^{3} x^{3} + 3 \, c d^{2} x^{2} + 3 \, c^{2} d x + c^{3}}\right ) \log \left (F\right )^{3} - {\left (2 \, d^{9} x^{9} + 18 \, c d^{8} x^{8} + 72 \, c^{2} d^{7} x^{7} + 168 \, c^{3} d^{6} x^{6} + 252 \, c^{4} d^{5} x^{5} + 252 \, c^{5} d^{4} x^{4} + 168 \, c^{6} d^{3} x^{3} + 72 \, c^{7} d^{2} x^{2} + 18 \, c^{8} d x + 2 \, c^{9} + {\left (b^{2} d^{3} x^{3} + 3 \, b^{2} c d^{2} x^{2} + 3 \, b^{2} c^{2} d x + b^{2} c^{3}\right )} \log \left (F\right )^{2} + {\left (b d^{6} x^{6} + 6 \, b c d^{5} x^{5} + 15 \, b c^{2} d^{4} x^{4} + 20 \, b c^{3} d^{3} x^{3} + 15 \, b c^{4} d^{2} x^{2} + 6 \, b c^{5} d x + b c^{6}\right )} \log \left (F\right )\right )} F^{\frac {a d^{3} x^{3} + 3 \, a c d^{2} x^{2} + 3 \, a c^{2} d x + a c^{3} + b}{d^{3} x^{3} + 3 \, c d^{2} x^{2} + 3 \, c^{2} d x + c^{3}}}}{18 \, d} \]
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\[ \int F^{a+\frac {b}{(c+d x)^3}} (c+d x)^8 \, dx=\int F^{a + \frac {b}{\left (c + d x\right )^{3}}} \left (c + d x\right )^{8}\, dx \]
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\[ \int F^{a+\frac {b}{(c+d x)^3}} (c+d x)^8 \, dx=\int { {\left (d x + c\right )}^{8} F^{a + \frac {b}{{\left (d x + c\right )}^{3}}} \,d x } \]
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\[ \int F^{a+\frac {b}{(c+d x)^3}} (c+d x)^8 \, dx=\int { {\left (d x + c\right )}^{8} F^{a + \frac {b}{{\left (d x + c\right )}^{3}}} \,d x } \]
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Time = 0.56 (sec) , antiderivative size = 92, normalized size of antiderivative = 0.76 \[ \int F^{a+\frac {b}{(c+d x)^3}} (c+d x)^8 \, dx=\frac {F^a\,b^3\,{\ln \left (F\right )}^3\,\left (\frac {\mathrm {expint}\left (-\frac {b\,\ln \left (F\right )}{{\left (c+d\,x\right )}^3}\right )}{6}+F^{\frac {b}{{\left (c+d\,x\right )}^3}}\,\left (\frac {{\left (c+d\,x\right )}^3}{6\,b\,\ln \left (F\right )}+\frac {{\left (c+d\,x\right )}^6}{6\,b^2\,{\ln \left (F\right )}^2}+\frac {{\left (c+d\,x\right )}^9}{3\,b^3\,{\ln \left (F\right )}^3}\right )\right )}{3\,d} \]
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