Integrand size = 21, antiderivative size = 94 \[ \int x \left (f+g x^2\right ) \log \left (c \left (d+e x^2\right )^p\right ) \, dx=-\frac {(e f-d g) p x^2}{4 e}-\frac {p \left (f+g x^2\right )^2}{8 g}-\frac {(e f-d g)^2 p \log \left (d+e x^2\right )}{4 e^2 g}+\frac {\left (f+g x^2\right )^2 \log \left (c \left (d+e x^2\right )^p\right )}{4 g} \]
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Time = 0.06 (sec) , antiderivative size = 94, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.143, Rules used = {2525, 2442, 45} \[ \int x \left (f+g x^2\right ) \log \left (c \left (d+e x^2\right )^p\right ) \, dx=\frac {\left (f+g x^2\right )^2 \log \left (c \left (d+e x^2\right )^p\right )}{4 g}-\frac {p (e f-d g)^2 \log \left (d+e x^2\right )}{4 e^2 g}-\frac {p x^2 (e f-d g)}{4 e}-\frac {p \left (f+g x^2\right )^2}{8 g} \]
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Rule 45
Rule 2442
Rule 2525
Rubi steps \begin{align*} \text {integral}& = \frac {1}{2} \text {Subst}\left (\int (f+g x) \log \left (c (d+e x)^p\right ) \, dx,x,x^2\right ) \\ & = \frac {\left (f+g x^2\right )^2 \log \left (c \left (d+e x^2\right )^p\right )}{4 g}-\frac {(e p) \text {Subst}\left (\int \frac {(f+g x)^2}{d+e x} \, dx,x,x^2\right )}{4 g} \\ & = \frac {\left (f+g x^2\right )^2 \log \left (c \left (d+e x^2\right )^p\right )}{4 g}-\frac {(e p) \text {Subst}\left (\int \left (\frac {g (e f-d g)}{e^2}+\frac {(e f-d g)^2}{e^2 (d+e x)}+\frac {g (f+g x)}{e}\right ) \, dx,x,x^2\right )}{4 g} \\ & = -\frac {(e f-d g) p x^2}{4 e}-\frac {p \left (f+g x^2\right )^2}{8 g}-\frac {(e f-d g)^2 p \log \left (d+e x^2\right )}{4 e^2 g}+\frac {\left (f+g x^2\right )^2 \log \left (c \left (d+e x^2\right )^p\right )}{4 g} \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 98, normalized size of antiderivative = 1.04 \[ \int x \left (f+g x^2\right ) \log \left (c \left (d+e x^2\right )^p\right ) \, dx=\frac {d g p x^2}{4 e}-\frac {1}{8} g p x^4-\frac {d^2 g p \log \left (d+e x^2\right )}{4 e^2}+\frac {1}{4} g x^4 \log \left (c \left (d+e x^2\right )^p\right )+\frac {1}{2} f \left (-p x^2+\frac {\left (d+e x^2\right ) \log \left (c \left (d+e x^2\right )^p\right )}{e}\right ) \]
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Time = 0.85 (sec) , antiderivative size = 127, normalized size of antiderivative = 1.35
method | result | size |
parts | \(\frac {g \,x^{4} \ln \left (c \left (e \,x^{2}+d \right )^{p}\right )}{4}+\frac {\ln \left (c \left (e \,x^{2}+d \right )^{p}\right ) f \,x^{2}}{2}+\frac {\ln \left (c \left (e \,x^{2}+d \right )^{p}\right ) f^{2}}{4 g}-\frac {p e \left (-\frac {g \left (-\frac {1}{2} e g \,x^{4}+d g \,x^{2}-2 f e \,x^{2}\right )}{2 e^{2}}+\frac {\left (g^{2} d^{2}-2 d e f g +e^{2} f^{2}\right ) \ln \left (e \,x^{2}+d \right )}{2 e^{3}}\right )}{2 g}\) | \(127\) |
parallelrisch | \(-\frac {-2 x^{4} \ln \left (c \left (e \,x^{2}+d \right )^{p}\right ) e^{2} g +g p \,x^{4} e^{2}-4 x^{2} \ln \left (c \left (e \,x^{2}+d \right )^{p}\right ) e^{2} f -2 d g p \,x^{2} e +4 x^{2} e^{2} f p +2 \ln \left (e \,x^{2}+d \right ) d^{2} g p -8 \ln \left (e \,x^{2}+d \right ) d e f p +4 \ln \left (c \left (e \,x^{2}+d \right )^{p}\right ) d e f +2 d^{2} g p -4 d e f p}{8 e^{2}}\) | \(136\) |
risch | \(\text {Expression too large to display}\) | \(3275\) |
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Time = 0.32 (sec) , antiderivative size = 99, normalized size of antiderivative = 1.05 \[ \int x \left (f+g x^2\right ) \log \left (c \left (d+e x^2\right )^p\right ) \, dx=-\frac {e^{2} g p x^{4} + 2 \, {\left (2 \, e^{2} f - d e g\right )} p x^{2} - 2 \, {\left (e^{2} g p x^{4} + 2 \, e^{2} f p x^{2} + {\left (2 \, d e f - d^{2} g\right )} p\right )} \log \left (e x^{2} + d\right ) - 2 \, {\left (e^{2} g x^{4} + 2 \, e^{2} f x^{2}\right )} \log \left (c\right )}{8 \, e^{2}} \]
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Time = 15.77 (sec) , antiderivative size = 126, normalized size of antiderivative = 1.34 \[ \int x \left (f+g x^2\right ) \log \left (c \left (d+e x^2\right )^p\right ) \, dx=\begin {cases} - \frac {d^{2} g \log {\left (c \left (d + e x^{2}\right )^{p} \right )}}{4 e^{2}} + \frac {d f \log {\left (c \left (d + e x^{2}\right )^{p} \right )}}{2 e} + \frac {d g p x^{2}}{4 e} - \frac {f p x^{2}}{2} + \frac {f x^{2} \log {\left (c \left (d + e x^{2}\right )^{p} \right )}}{2} - \frac {g p x^{4}}{8} + \frac {g x^{4} \log {\left (c \left (d + e x^{2}\right )^{p} \right )}}{4} & \text {for}\: e \neq 0 \\\left (\frac {f x^{2}}{2} + \frac {g x^{4}}{4}\right ) \log {\left (c d^{p} \right )} & \text {otherwise} \end {cases} \]
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Time = 0.19 (sec) , antiderivative size = 99, normalized size of antiderivative = 1.05 \[ \int x \left (f+g x^2\right ) \log \left (c \left (d+e x^2\right )^p\right ) \, dx=-\frac {e p {\left (\frac {e g^{2} x^{4} + 2 \, {\left (2 \, e f g - d g^{2}\right )} x^{2}}{e^{2}} + \frac {2 \, {\left (e^{2} f^{2} - 2 \, d e f g + d^{2} g^{2}\right )} \log \left (e x^{2} + d\right )}{e^{3}}\right )}}{8 \, g} + \frac {{\left (g x^{2} + f\right )}^{2} \log \left ({\left (e x^{2} + d\right )}^{p} c\right )}{4 \, g} \]
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Time = 0.32 (sec) , antiderivative size = 143, normalized size of antiderivative = 1.52 \[ \int x \left (f+g x^2\right ) \log \left (c \left (d+e x^2\right )^p\right ) \, dx=\frac {2 \, {\left (e x^{2} + d\right )}^{2} g p \log \left (e x^{2} + d\right ) - {\left (e x^{2} + d\right )}^{2} g p + 2 \, {\left (e x^{2} + d\right )}^{2} g \log \left (c\right )}{8 \, e^{2}} - \frac {{\left (e x^{2} - {\left (e x^{2} + d\right )} \log \left (e x^{2} + d\right ) + d\right )} e f p - {\left (e x^{2} - {\left (e x^{2} + d\right )} \log \left (e x^{2} + d\right ) + d\right )} d g p - {\left (e x^{2} + d\right )} e f \log \left (c\right ) + {\left (e x^{2} + d\right )} d g \log \left (c\right )}{2 \, e^{2}} \]
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Time = 1.49 (sec) , antiderivative size = 78, normalized size of antiderivative = 0.83 \[ \int x \left (f+g x^2\right ) \log \left (c \left (d+e x^2\right )^p\right ) \, dx=\ln \left (c\,{\left (e\,x^2+d\right )}^p\right )\,\left (\frac {g\,x^4}{4}+\frac {f\,x^2}{2}\right )-x^2\,\left (\frac {f\,p}{2}-\frac {d\,g\,p}{4\,e}\right )-\frac {g\,p\,x^4}{8}-\frac {\ln \left (e\,x^2+d\right )\,\left (d^2\,g\,p-2\,d\,e\,f\,p\right )}{4\,e^2} \]
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