Integrand size = 10, antiderivative size = 61 \[ \int \log ^3(c (d+e x)) \, dx=-6 x+\frac {6 (d+e x) \log (c (d+e x))}{e}-\frac {3 (d+e x) \log ^2(c (d+e x))}{e}+\frac {(d+e x) \log ^3(c (d+e x))}{e} \]
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Time = 0.02 (sec) , antiderivative size = 61, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.300, Rules used = {2436, 2333, 2332} \[ \int \log ^3(c (d+e x)) \, dx=\frac {(d+e x) \log ^3(c (d+e x))}{e}-\frac {3 (d+e x) \log ^2(c (d+e x))}{e}+\frac {6 (d+e x) \log (c (d+e x))}{e}-6 x \]
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Rule 2332
Rule 2333
Rule 2436
Rubi steps \begin{align*} \text {integral}& = \frac {\text {Subst}\left (\int \log ^3(c x) \, dx,x,d+e x\right )}{e} \\ & = \frac {(d+e x) \log ^3(c (d+e x))}{e}-\frac {3 \text {Subst}\left (\int \log ^2(c x) \, dx,x,d+e x\right )}{e} \\ & = -\frac {3 (d+e x) \log ^2(c (d+e x))}{e}+\frac {(d+e x) \log ^3(c (d+e x))}{e}+\frac {6 \text {Subst}(\int \log (c x) \, dx,x,d+e x)}{e} \\ & = -6 x+\frac {6 (d+e x) \log (c (d+e x))}{e}-\frac {3 (d+e x) \log ^2(c (d+e x))}{e}+\frac {(d+e x) \log ^3(c (d+e x))}{e} \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 57, normalized size of antiderivative = 0.93 \[ \int \log ^3(c (d+e x)) \, dx=\frac {-6 e x+6 (d+e x) \log (c (d+e x))-3 (d+e x) \log ^2(c (d+e x))+(d+e x) \log ^3(c (d+e x))}{e} \]
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Time = 0.12 (sec) , antiderivative size = 67, normalized size of antiderivative = 1.10
method | result | size |
risch | \(\frac {\left (e x +d \right ) \ln \left (c \left (e x +d \right )\right )^{3}}{e}-\frac {3 \left (e x +d \right ) \ln \left (c \left (e x +d \right )\right )^{2}}{e}+6 x \ln \left (c \left (e x +d \right )\right )-6 x +\frac {6 d \ln \left (e x +d \right )}{e}\) | \(67\) |
derivativedivides | \(\frac {\left (c e x +c d \right ) \ln \left (c e x +c d \right )^{3}-3 \left (c e x +c d \right ) \ln \left (c e x +c d \right )^{2}+6 \left (c e x +c d \right ) \ln \left (c e x +c d \right )-6 c e x -6 c d}{c e}\) | \(78\) |
default | \(\frac {\left (c e x +c d \right ) \ln \left (c e x +c d \right )^{3}-3 \left (c e x +c d \right ) \ln \left (c e x +c d \right )^{2}+6 \left (c e x +c d \right ) \ln \left (c e x +c d \right )-6 c e x -6 c d}{c e}\) | \(78\) |
norman | \(x \ln \left (c \left (e x +d \right )\right )^{3}+\frac {d \ln \left (c \left (e x +d \right )\right )^{3}}{e}-6 x +6 x \ln \left (c \left (e x +d \right )\right )-3 x \ln \left (c \left (e x +d \right )\right )^{2}+\frac {6 d \ln \left (c \left (e x +d \right )\right )}{e}-\frac {3 d \ln \left (c \left (e x +d \right )\right )^{2}}{e}\) | \(86\) |
parallelrisch | \(\frac {x \ln \left (c \left (e x +d \right )\right )^{3} e -3 x \ln \left (c \left (e x +d \right )\right )^{2} e +\ln \left (c \left (e x +d \right )\right )^{3} d +6 \ln \left (c \left (e x +d \right )\right ) x e -3 \ln \left (c \left (e x +d \right )\right )^{2} d -6 e x +6 d \ln \left (c \left (e x +d \right )\right )+6 d}{e}\) | \(88\) |
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Time = 0.30 (sec) , antiderivative size = 60, normalized size of antiderivative = 0.98 \[ \int \log ^3(c (d+e x)) \, dx=\frac {{\left (e x + d\right )} \log \left (c e x + c d\right )^{3} - 3 \, {\left (e x + d\right )} \log \left (c e x + c d\right )^{2} - 6 \, e x + 6 \, {\left (e x + d\right )} \log \left (c e x + c d\right )}{e} \]
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Time = 0.11 (sec) , antiderivative size = 68, normalized size of antiderivative = 1.11 \[ \int \log ^3(c (d+e x)) \, dx=- 6 e \left (- \frac {d \log {\left (d + e x \right )}}{e^{2}} + \frac {x}{e}\right ) + 6 x \log {\left (c \left (d + e x\right ) \right )} + \frac {\left (- 3 d - 3 e x\right ) \log {\left (c \left (d + e x\right ) \right )}^{2}}{e} + \frac {\left (d + e x\right ) \log {\left (c \left (d + e x\right ) \right )}^{3}}{e} \]
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Leaf count of result is larger than twice the leaf count of optimal. 125 vs. \(2 (61) = 122\).
Time = 0.19 (sec) , antiderivative size = 125, normalized size of antiderivative = 2.05 \[ \int \log ^3(c (d+e x)) \, dx=-3 \, e {\left (\frac {x}{e} - \frac {d \log \left (e x + d\right )}{e^{2}}\right )} \log \left ({\left (e x + d\right )} c\right )^{2} + x \log \left ({\left (e x + d\right )} c\right )^{3} - e {\left (\frac {3 \, {\left (d \log \left (e x + d\right )^{2} - 2 \, e x + 2 \, d \log \left (e x + d\right )\right )} \log \left ({\left (e x + d\right )} c\right )}{e^{2}} - \frac {d \log \left (e x + d\right )^{3} + 3 \, d \log \left (e x + d\right )^{2} - 6 \, e x + 6 \, d \log \left (e x + d\right )}{e^{2}}\right )} \]
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Time = 0.28 (sec) , antiderivative size = 68, normalized size of antiderivative = 1.11 \[ \int \log ^3(c (d+e x)) \, dx=\frac {{\left (e x + d\right )} \log \left ({\left (e x + d\right )} c\right )^{3}}{e} - \frac {3 \, {\left (e x + d\right )} \log \left ({\left (e x + d\right )} c\right )^{2}}{e} + \frac {6 \, {\left (e x + d\right )} \log \left ({\left (e x + d\right )} c\right )}{e} - \frac {6 \, {\left (e x + d\right )}}{e} \]
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Time = 1.45 (sec) , antiderivative size = 88, normalized size of antiderivative = 1.44 \[ \int \log ^3(c (d+e x)) \, dx=6\,x\,\ln \left (c\,d+c\,e\,x\right )-6\,x-3\,x\,{\ln \left (c\,d+c\,e\,x\right )}^2+x\,{\ln \left (c\,d+c\,e\,x\right )}^3-\frac {3\,d\,{\ln \left (c\,d+c\,e\,x\right )}^2}{e}+\frac {d\,{\ln \left (c\,d+c\,e\,x\right )}^3}{e}+\frac {6\,d\,\ln \left (d+e\,x\right )}{e} \]
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