Integrand size = 22, antiderivative size = 97 \[ \int \frac {\log \left (c (a+b x)^n\right )}{d x+e x^2} \, dx=\frac {\log \left (-\frac {b x}{a}\right ) \log \left (c (a+b x)^n\right )}{d}-\frac {\log \left (c (a+b x)^n\right ) \log \left (\frac {b (d+e x)}{b d-a e}\right )}{d}-\frac {n \operatorname {PolyLog}\left (2,-\frac {e (a+b x)}{b d-a e}\right )}{d}+\frac {n \operatorname {PolyLog}\left (2,1+\frac {b x}{a}\right )}{d} \]
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Time = 0.09 (sec) , antiderivative size = 97, normalized size of antiderivative = 1.00, number of steps used = 8, number of rules used = 9, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.409, Rules used = {1607, 36, 29, 31, 2463, 2441, 2352, 2440, 2438} \[ \int \frac {\log \left (c (a+b x)^n\right )}{d x+e x^2} \, dx=-\frac {\log \left (c (a+b x)^n\right ) \log \left (\frac {b (d+e x)}{b d-a e}\right )}{d}+\frac {\log \left (-\frac {b x}{a}\right ) \log \left (c (a+b x)^n\right )}{d}-\frac {n \operatorname {PolyLog}\left (2,-\frac {e (a+b x)}{b d-a e}\right )}{d}+\frac {n \operatorname {PolyLog}\left (2,\frac {b x}{a}+1\right )}{d} \]
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Rule 29
Rule 31
Rule 36
Rule 1607
Rule 2352
Rule 2438
Rule 2440
Rule 2441
Rule 2463
Rubi steps \begin{align*} \text {integral}& = \int \frac {\log \left (c (a+b x)^n\right )}{x (d+e x)} \, dx \\ & = \int \left (\frac {\log \left (c (a+b x)^n\right )}{d x}-\frac {e \log \left (c (a+b x)^n\right )}{d (d+e x)}\right ) \, dx \\ & = \frac {\int \frac {\log \left (c (a+b x)^n\right )}{x} \, dx}{d}-\frac {e \int \frac {\log \left (c (a+b x)^n\right )}{d+e x} \, dx}{d} \\ & = \frac {\log \left (-\frac {b x}{a}\right ) \log \left (c (a+b x)^n\right )}{d}-\frac {\log \left (c (a+b x)^n\right ) \log \left (\frac {b (d+e x)}{b d-a e}\right )}{d}-\frac {(b n) \int \frac {\log \left (-\frac {b x}{a}\right )}{a+b x} \, dx}{d}+\frac {(b n) \int \frac {\log \left (\frac {b (d+e x)}{b d-a e}\right )}{a+b x} \, dx}{d} \\ & = \frac {\log \left (-\frac {b x}{a}\right ) \log \left (c (a+b x)^n\right )}{d}-\frac {\log \left (c (a+b x)^n\right ) \log \left (\frac {b (d+e x)}{b d-a e}\right )}{d}+\frac {n \text {Li}_2\left (1+\frac {b x}{a}\right )}{d}+\frac {n \text {Subst}\left (\int \frac {\log \left (1+\frac {e x}{b d-a e}\right )}{x} \, dx,x,a+b x\right )}{d} \\ & = \frac {\log \left (-\frac {b x}{a}\right ) \log \left (c (a+b x)^n\right )}{d}-\frac {\log \left (c (a+b x)^n\right ) \log \left (\frac {b (d+e x)}{b d-a e}\right )}{d}-\frac {n \text {Li}_2\left (-\frac {e (a+b x)}{b d-a e}\right )}{d}+\frac {n \text {Li}_2\left (1+\frac {b x}{a}\right )}{d} \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 98, normalized size of antiderivative = 1.01 \[ \int \frac {\log \left (c (a+b x)^n\right )}{d x+e x^2} \, dx=\frac {\log \left (-\frac {b x}{a}\right ) \log \left (c (a+b x)^n\right )}{d}-\frac {\log \left (c (a+b x)^n\right ) \log \left (\frac {b (d+e x)}{b d-a e}\right )}{d}+\frac {n \operatorname {PolyLog}\left (2,\frac {a+b x}{a}\right )}{d}-\frac {n \operatorname {PolyLog}\left (2,-\frac {e (a+b x)}{b d-a e}\right )}{d} \]
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Time = 0.70 (sec) , antiderivative size = 156, normalized size of antiderivative = 1.61
method | result | size |
parts | \(-\frac {\ln \left (c \left (b x +a \right )^{n}\right ) \ln \left (e x +d \right )}{d}+\frac {\ln \left (c \left (b x +a \right )^{n}\right ) \ln \left (x \right )}{d}-b n \left (\frac {\operatorname {dilog}\left (\frac {b x +a}{a}\right )}{d b}+\frac {\ln \left (x \right ) \ln \left (\frac {b x +a}{a}\right )}{d b}-\frac {\operatorname {dilog}\left (\frac {\left (e x +d \right ) b +a e -b d}{a e -b d}\right )}{d b}-\frac {\ln \left (e x +d \right ) \ln \left (\frac {\left (e x +d \right ) b +a e -b d}{a e -b d}\right )}{d b}\right )\) | \(156\) |
risch | \(-\frac {\ln \left (e x +d \right ) \ln \left (\left (b x +a \right )^{n}\right )}{d}+\frac {\ln \left (\left (b x +a \right )^{n}\right ) \ln \left (x \right )}{d}-\frac {n \operatorname {dilog}\left (\frac {b x +a}{a}\right )}{d}-\frac {n \ln \left (x \right ) \ln \left (\frac {b x +a}{a}\right )}{d}+\frac {n \operatorname {dilog}\left (\frac {\left (e x +d \right ) b +a e -b d}{a e -b d}\right )}{d}+\frac {n \ln \left (e x +d \right ) \ln \left (\frac {\left (e x +d \right ) b +a e -b d}{a e -b d}\right )}{d}+\left (-\frac {i \pi \operatorname {csgn}\left (i c \left (b x +a \right )^{n}\right )^{3}}{2}+\frac {i \pi \operatorname {csgn}\left (i c \left (b x +a \right )^{n}\right )^{2} \operatorname {csgn}\left (i \left (b x +a \right )^{n}\right )}{2}+\frac {i \pi \operatorname {csgn}\left (i c \left (b x +a \right )^{n}\right )^{2} \operatorname {csgn}\left (i c \right )}{2}-\frac {i \pi \,\operatorname {csgn}\left (i c \left (b x +a \right )^{n}\right ) \operatorname {csgn}\left (i \left (b x +a \right )^{n}\right ) \operatorname {csgn}\left (i c \right )}{2}+\ln \left (c \right )\right ) \left (-\frac {\ln \left (e x +d \right )}{d}+\frac {\ln \left (x \right )}{d}\right )\) | \(263\) |
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\[ \int \frac {\log \left (c (a+b x)^n\right )}{d x+e x^2} \, dx=\int { \frac {\log \left ({\left (b x + a\right )}^{n} c\right )}{e x^{2} + d x} \,d x } \]
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\[ \int \frac {\log \left (c (a+b x)^n\right )}{d x+e x^2} \, dx=\int \frac {\log {\left (c \left (a + b x\right )^{n} \right )}}{x \left (d + e x\right )}\, dx \]
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Time = 0.24 (sec) , antiderivative size = 123, normalized size of antiderivative = 1.27 \[ \int \frac {\log \left (c (a+b x)^n\right )}{d x+e x^2} \, dx=-b n {\left (\frac {\log \left (\frac {b x}{a} + 1\right ) \log \left (x\right ) + {\rm Li}_2\left (-\frac {b x}{a}\right )}{b d} - \frac {\log \left (e x + d\right ) \log \left (-\frac {b e x + b d}{b d - a e} + 1\right ) + {\rm Li}_2\left (\frac {b e x + b d}{b d - a e}\right )}{b d}\right )} - {\left (\frac {\log \left (e x + d\right )}{d} - \frac {\log \left (x\right )}{d}\right )} \log \left ({\left (b x + a\right )}^{n} c\right ) \]
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\[ \int \frac {\log \left (c (a+b x)^n\right )}{d x+e x^2} \, dx=\int { \frac {\log \left ({\left (b x + a\right )}^{n} c\right )}{e x^{2} + d x} \,d x } \]
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Timed out. \[ \int \frac {\log \left (c (a+b x)^n\right )}{d x+e x^2} \, dx=\int \frac {\ln \left (c\,{\left (a+b\,x\right )}^n\right )}{e\,x^2+d\,x} \,d x \]
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