Integrand size = 22, antiderivative size = 141 \[ \int (f x)^{-1+3 n} \log \left (c \left (d+e x^n\right )^p\right ) \, dx=-\frac {p (f x)^{3 n}}{9 f n}-\frac {d^2 p x^{-2 n} (f x)^{3 n}}{3 e^2 f n}+\frac {d p x^{-n} (f x)^{3 n}}{6 e f n}+\frac {d^3 p x^{-3 n} (f x)^{3 n} \log \left (d+e x^n\right )}{3 e^3 f n}+\frac {(f x)^{3 n} \log \left (c \left (d+e x^n\right )^p\right )}{3 f n} \]
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Time = 0.05 (sec) , antiderivative size = 141, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.182, Rules used = {2505, 20, 272, 45} \[ \int (f x)^{-1+3 n} \log \left (c \left (d+e x^n\right )^p\right ) \, dx=\frac {(f x)^{3 n} \log \left (c \left (d+e x^n\right )^p\right )}{3 f n}+\frac {d^3 p x^{-3 n} (f x)^{3 n} \log \left (d+e x^n\right )}{3 e^3 f n}-\frac {d^2 p x^{-2 n} (f x)^{3 n}}{3 e^2 f n}+\frac {d p x^{-n} (f x)^{3 n}}{6 e f n}-\frac {p (f x)^{3 n}}{9 f n} \]
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Rule 20
Rule 45
Rule 272
Rule 2505
Rubi steps \begin{align*} \text {integral}& = \frac {(f x)^{3 n} \log \left (c \left (d+e x^n\right )^p\right )}{3 f n}-\frac {(e p) \int \frac {x^{-1+n} (f x)^{3 n}}{d+e x^n} \, dx}{3 f} \\ & = \frac {(f x)^{3 n} \log \left (c \left (d+e x^n\right )^p\right )}{3 f n}-\frac {\left (e p x^{-3 n} (f x)^{3 n}\right ) \int \frac {x^{-1+4 n}}{d+e x^n} \, dx}{3 f} \\ & = \frac {(f x)^{3 n} \log \left (c \left (d+e x^n\right )^p\right )}{3 f n}-\frac {\left (e p x^{-3 n} (f x)^{3 n}\right ) \text {Subst}\left (\int \frac {x^3}{d+e x} \, dx,x,x^n\right )}{3 f n} \\ & = \frac {(f x)^{3 n} \log \left (c \left (d+e x^n\right )^p\right )}{3 f n}-\frac {\left (e p x^{-3 n} (f x)^{3 n}\right ) \text {Subst}\left (\int \left (\frac {d^2}{e^3}-\frac {d x}{e^2}+\frac {x^2}{e}-\frac {d^3}{e^3 (d+e x)}\right ) \, dx,x,x^n\right )}{3 f n} \\ & = -\frac {p (f x)^{3 n}}{9 f n}-\frac {d^2 p x^{-2 n} (f x)^{3 n}}{3 e^2 f n}+\frac {d p x^{-n} (f x)^{3 n}}{6 e f n}+\frac {d^3 p x^{-3 n} (f x)^{3 n} \log \left (d+e x^n\right )}{3 e^3 f n}+\frac {(f x)^{3 n} \log \left (c \left (d+e x^n\right )^p\right )}{3 f n} \\ \end{align*}
Time = 0.06 (sec) , antiderivative size = 92, normalized size of antiderivative = 0.65 \[ \int (f x)^{-1+3 n} \log \left (c \left (d+e x^n\right )^p\right ) \, dx=\frac {x^{-3 n} (f x)^{3 n} \left (-e p x^n \left (6 d^2-3 d e x^n+2 e^2 x^{2 n}\right )+6 d^3 p \log \left (d+e x^n\right )+6 e^3 x^{3 n} \log \left (c \left (d+e x^n\right )^p\right )\right )}{18 e^3 f n} \]
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\[\int \left (f x \right )^{-1+3 n} \ln \left (c \left (d +e \,x^{n}\right )^{p}\right )d x\]
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Time = 0.29 (sec) , antiderivative size = 112, normalized size of antiderivative = 0.79 \[ \int (f x)^{-1+3 n} \log \left (c \left (d+e x^n\right )^p\right ) \, dx=\frac {3 \, d e^{2} f^{3 \, n - 1} p x^{2 \, n} - 6 \, d^{2} e f^{3 \, n - 1} p x^{n} - 2 \, {\left (e^{3} p - 3 \, e^{3} \log \left (c\right )\right )} f^{3 \, n - 1} x^{3 \, n} + 6 \, {\left (e^{3} f^{3 \, n - 1} p x^{3 \, n} + d^{3} f^{3 \, n - 1} p\right )} \log \left (e x^{n} + d\right )}{18 \, e^{3} n} \]
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\[ \int (f x)^{-1+3 n} \log \left (c \left (d+e x^n\right )^p\right ) \, dx=\int \left (f x\right )^{3 n - 1} \log {\left (c \left (d + e x^{n}\right )^{p} \right )}\, dx \]
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Time = 0.23 (sec) , antiderivative size = 115, normalized size of antiderivative = 0.82 \[ \int (f x)^{-1+3 n} \log \left (c \left (d+e x^n\right )^p\right ) \, dx=\frac {e p {\left (\frac {6 \, d^{3} f^{3 \, n} \log \left (\frac {e x^{n} + d}{e}\right )}{e^{4} n} - \frac {2 \, e^{2} f^{3 \, n} x^{3 \, n} - 3 \, d e f^{3 \, n} x^{2 \, n} + 6 \, d^{2} f^{3 \, n} x^{n}}{e^{3} n}\right )}}{18 \, f} + \frac {\left (f x\right )^{3 \, n} \log \left ({\left (e x^{n} + d\right )}^{p} c\right )}{3 \, f n} \]
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\[ \int (f x)^{-1+3 n} \log \left (c \left (d+e x^n\right )^p\right ) \, dx=\int { \left (f x\right )^{3 \, n - 1} \log \left ({\left (e x^{n} + d\right )}^{p} c\right ) \,d x } \]
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Timed out. \[ \int (f x)^{-1+3 n} \log \left (c \left (d+e x^n\right )^p\right ) \, dx=\int \ln \left (c\,{\left (d+e\,x^n\right )}^p\right )\,{\left (f\,x\right )}^{3\,n-1} \,d x \]
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