Integrand size = 11, antiderivative size = 81 \[ \int \frac {x^5}{(a+b x)^4} \, dx=-\frac {4 a x}{b^5}+\frac {x^2}{2 b^4}+\frac {a^5}{3 b^6 (a+b x)^3}-\frac {5 a^4}{2 b^6 (a+b x)^2}+\frac {10 a^3}{b^6 (a+b x)}+\frac {10 a^2 \log (a+b x)}{b^6} \]
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Time = 0.03 (sec) , antiderivative size = 81, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.091, Rules used = {45} \[ \int \frac {x^5}{(a+b x)^4} \, dx=\frac {a^5}{3 b^6 (a+b x)^3}-\frac {5 a^4}{2 b^6 (a+b x)^2}+\frac {10 a^3}{b^6 (a+b x)}+\frac {10 a^2 \log (a+b x)}{b^6}-\frac {4 a x}{b^5}+\frac {x^2}{2 b^4} \]
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Rule 45
Rubi steps \begin{align*} \text {integral}& = \int \left (-\frac {4 a}{b^5}+\frac {x}{b^4}-\frac {a^5}{b^5 (a+b x)^4}+\frac {5 a^4}{b^5 (a+b x)^3}-\frac {10 a^3}{b^5 (a+b x)^2}+\frac {10 a^2}{b^5 (a+b x)}\right ) \, dx \\ & = -\frac {4 a x}{b^5}+\frac {x^2}{2 b^4}+\frac {a^5}{3 b^6 (a+b x)^3}-\frac {5 a^4}{2 b^6 (a+b x)^2}+\frac {10 a^3}{b^6 (a+b x)}+\frac {10 a^2 \log (a+b x)}{b^6} \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 68, normalized size of antiderivative = 0.84 \[ \int \frac {x^5}{(a+b x)^4} \, dx=\frac {-24 a b x+3 b^2 x^2+\frac {2 a^5}{(a+b x)^3}-\frac {15 a^4}{(a+b x)^2}+\frac {60 a^3}{a+b x}+60 a^2 \log (a+b x)}{6 b^6} \]
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Time = 0.17 (sec) , antiderivative size = 66, normalized size of antiderivative = 0.81
method | result | size |
risch | \(\frac {x^{2}}{2 b^{4}}-\frac {4 a x}{b^{5}}+\frac {10 a^{3} b \,x^{2}+\frac {35 a^{4} x}{2}+\frac {47 a^{5}}{6 b}}{b^{5} \left (b x +a \right )^{3}}+\frac {10 a^{2} \ln \left (b x +a \right )}{b^{6}}\) | \(66\) |
norman | \(\frac {\frac {x^{5}}{2 b}-\frac {5 a \,x^{4}}{2 b^{2}}+\frac {55 a^{5}}{3 b^{6}}+\frac {30 a^{3} x^{2}}{b^{4}}+\frac {45 a^{4} x}{b^{5}}}{\left (b x +a \right )^{3}}+\frac {10 a^{2} \ln \left (b x +a \right )}{b^{6}}\) | \(70\) |
default | \(-\frac {-\frac {1}{2} b \,x^{2}+4 a x}{b^{5}}+\frac {10 a^{2} \ln \left (b x +a \right )}{b^{6}}+\frac {a^{5}}{3 b^{6} \left (b x +a \right )^{3}}-\frac {5 a^{4}}{2 b^{6} \left (b x +a \right )^{2}}+\frac {10 a^{3}}{b^{6} \left (b x +a \right )}\) | \(77\) |
parallelrisch | \(\frac {3 b^{5} x^{5}+60 \ln \left (b x +a \right ) x^{3} a^{2} b^{3}-15 a \,b^{4} x^{4}+180 \ln \left (b x +a \right ) x^{2} a^{3} b^{2}+180 \ln \left (b x +a \right ) x \,a^{4} b +180 a^{3} b^{2} x^{2}+60 a^{5} \ln \left (b x +a \right )+270 a^{4} b x +110 a^{5}}{6 b^{6} \left (b x +a \right )^{3}}\) | \(112\) |
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none
Time = 0.22 (sec) , antiderivative size = 129, normalized size of antiderivative = 1.59 \[ \int \frac {x^5}{(a+b x)^4} \, dx=\frac {3 \, b^{5} x^{5} - 15 \, a b^{4} x^{4} - 63 \, a^{2} b^{3} x^{3} - 9 \, a^{3} b^{2} x^{2} + 81 \, a^{4} b x + 47 \, a^{5} + 60 \, {\left (a^{2} b^{3} x^{3} + 3 \, a^{3} b^{2} x^{2} + 3 \, a^{4} b x + a^{5}\right )} \log \left (b x + a\right )}{6 \, {\left (b^{9} x^{3} + 3 \, a b^{8} x^{2} + 3 \, a^{2} b^{7} x + a^{3} b^{6}\right )}} \]
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Time = 0.24 (sec) , antiderivative size = 94, normalized size of antiderivative = 1.16 \[ \int \frac {x^5}{(a+b x)^4} \, dx=\frac {10 a^{2} \log {\left (a + b x \right )}}{b^{6}} - \frac {4 a x}{b^{5}} + \frac {47 a^{5} + 105 a^{4} b x + 60 a^{3} b^{2} x^{2}}{6 a^{3} b^{6} + 18 a^{2} b^{7} x + 18 a b^{8} x^{2} + 6 b^{9} x^{3}} + \frac {x^{2}}{2 b^{4}} \]
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Time = 0.20 (sec) , antiderivative size = 91, normalized size of antiderivative = 1.12 \[ \int \frac {x^5}{(a+b x)^4} \, dx=\frac {60 \, a^{3} b^{2} x^{2} + 105 \, a^{4} b x + 47 \, a^{5}}{6 \, {\left (b^{9} x^{3} + 3 \, a b^{8} x^{2} + 3 \, a^{2} b^{7} x + a^{3} b^{6}\right )}} + \frac {10 \, a^{2} \log \left (b x + a\right )}{b^{6}} + \frac {b x^{2} - 8 \, a x}{2 \, b^{5}} \]
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none
Time = 0.30 (sec) , antiderivative size = 72, normalized size of antiderivative = 0.89 \[ \int \frac {x^5}{(a+b x)^4} \, dx=\frac {10 \, a^{2} \log \left ({\left | b x + a \right |}\right )}{b^{6}} + \frac {b^{4} x^{2} - 8 \, a b^{3} x}{2 \, b^{8}} + \frac {60 \, a^{3} b^{2} x^{2} + 105 \, a^{4} b x + 47 \, a^{5}}{6 \, {\left (b x + a\right )}^{3} b^{6}} \]
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Time = 0.14 (sec) , antiderivative size = 66, normalized size of antiderivative = 0.81 \[ \int \frac {x^5}{(a+b x)^4} \, dx=\frac {\frac {{\left (a+b\,x\right )}^2}{2}+\frac {10\,a^3}{a+b\,x}-\frac {5\,a^4}{2\,{\left (a+b\,x\right )}^2}+\frac {a^5}{3\,{\left (a+b\,x\right )}^3}+10\,a^2\,\ln \left (a+b\,x\right )-5\,a\,b\,x}{b^6} \]
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