Integrand size = 16, antiderivative size = 86 \[ \int \frac {c+d x}{x^4 (a+b x)} \, dx=-\frac {c}{3 a x^3}+\frac {b c-a d}{2 a^2 x^2}-\frac {b (b c-a d)}{a^3 x}-\frac {b^2 (b c-a d) \log (x)}{a^4}+\frac {b^2 (b c-a d) \log (a+b x)}{a^4} \]
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Time = 0.04 (sec) , antiderivative size = 86, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.062, Rules used = {78} \[ \int \frac {c+d x}{x^4 (a+b x)} \, dx=-\frac {b^2 \log (x) (b c-a d)}{a^4}+\frac {b^2 (b c-a d) \log (a+b x)}{a^4}-\frac {b (b c-a d)}{a^3 x}+\frac {b c-a d}{2 a^2 x^2}-\frac {c}{3 a x^3} \]
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Rule 78
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {c}{a x^4}+\frac {-b c+a d}{a^2 x^3}-\frac {b (-b c+a d)}{a^3 x^2}+\frac {b^2 (-b c+a d)}{a^4 x}-\frac {b^3 (-b c+a d)}{a^4 (a+b x)}\right ) \, dx \\ & = -\frac {c}{3 a x^3}+\frac {b c-a d}{2 a^2 x^2}-\frac {b (b c-a d)}{a^3 x}-\frac {b^2 (b c-a d) \log (x)}{a^4}+\frac {b^2 (b c-a d) \log (a+b x)}{a^4} \\ \end{align*}
Time = 0.04 (sec) , antiderivative size = 81, normalized size of antiderivative = 0.94 \[ \int \frac {c+d x}{x^4 (a+b x)} \, dx=\frac {\frac {a \left (-6 b^2 c x^2+3 a b x (c+2 d x)-a^2 (2 c+3 d x)\right )}{x^3}+6 b^2 (-b c+a d) \log (x)+6 b^2 (b c-a d) \log (a+b x)}{6 a^4} \]
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Time = 0.98 (sec) , antiderivative size = 82, normalized size of antiderivative = 0.95
method | result | size |
default | \(-\frac {c}{3 a \,x^{3}}-\frac {a d -b c}{2 a^{2} x^{2}}+\frac {\left (a d -b c \right ) b^{2} \ln \left (x \right )}{a^{4}}+\frac {\left (a d -b c \right ) b}{a^{3} x}-\frac {\left (a d -b c \right ) b^{2} \ln \left (b x +a \right )}{a^{4}}\) | \(82\) |
norman | \(\frac {\frac {\left (a d -b c \right ) b \,x^{2}}{a^{3}}-\frac {c}{3 a}-\frac {\left (a d -b c \right ) x}{2 a^{2}}}{x^{3}}+\frac {\left (a d -b c \right ) b^{2} \ln \left (x \right )}{a^{4}}-\frac {\left (a d -b c \right ) b^{2} \ln \left (b x +a \right )}{a^{4}}\) | \(82\) |
risch | \(\frac {\frac {\left (a d -b c \right ) b \,x^{2}}{a^{3}}-\frac {c}{3 a}-\frac {\left (a d -b c \right ) x}{2 a^{2}}}{x^{3}}+\frac {b^{2} \ln \left (-x \right ) d}{a^{3}}-\frac {b^{3} \ln \left (-x \right ) c}{a^{4}}-\frac {b^{2} \ln \left (b x +a \right ) d}{a^{3}}+\frac {b^{3} \ln \left (b x +a \right ) c}{a^{4}}\) | \(97\) |
parallelrisch | \(\frac {6 \ln \left (x \right ) x^{3} a \,b^{2} d -6 \ln \left (x \right ) x^{3} b^{3} c -6 \ln \left (b x +a \right ) x^{3} a \,b^{2} d +6 \ln \left (b x +a \right ) x^{3} b^{3} c +6 a^{2} b d \,x^{2}-6 a \,b^{2} c \,x^{2}-3 a^{3} d x +3 a^{2} b c x -2 c \,a^{3}}{6 a^{4} x^{3}}\) | \(105\) |
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Time = 0.22 (sec) , antiderivative size = 94, normalized size of antiderivative = 1.09 \[ \int \frac {c+d x}{x^4 (a+b x)} \, dx=\frac {6 \, {\left (b^{3} c - a b^{2} d\right )} x^{3} \log \left (b x + a\right ) - 6 \, {\left (b^{3} c - a b^{2} d\right )} x^{3} \log \left (x\right ) - 2 \, a^{3} c - 6 \, {\left (a b^{2} c - a^{2} b d\right )} x^{2} + 3 \, {\left (a^{2} b c - a^{3} d\right )} x}{6 \, a^{4} x^{3}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 165 vs. \(2 (75) = 150\).
Time = 0.26 (sec) , antiderivative size = 165, normalized size of antiderivative = 1.92 \[ \int \frac {c+d x}{x^4 (a+b x)} \, dx=\frac {- 2 a^{2} c + x^{2} \cdot \left (6 a b d - 6 b^{2} c\right ) + x \left (- 3 a^{2} d + 3 a b c\right )}{6 a^{3} x^{3}} + \frac {b^{2} \left (a d - b c\right ) \log {\left (x + \frac {a^{2} b^{2} d - a b^{3} c - a b^{2} \left (a d - b c\right )}{2 a b^{3} d - 2 b^{4} c} \right )}}{a^{4}} - \frac {b^{2} \left (a d - b c\right ) \log {\left (x + \frac {a^{2} b^{2} d - a b^{3} c + a b^{2} \left (a d - b c\right )}{2 a b^{3} d - 2 b^{4} c} \right )}}{a^{4}} \]
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Time = 0.20 (sec) , antiderivative size = 89, normalized size of antiderivative = 1.03 \[ \int \frac {c+d x}{x^4 (a+b x)} \, dx=\frac {{\left (b^{3} c - a b^{2} d\right )} \log \left (b x + a\right )}{a^{4}} - \frac {{\left (b^{3} c - a b^{2} d\right )} \log \left (x\right )}{a^{4}} - \frac {2 \, a^{2} c + 6 \, {\left (b^{2} c - a b d\right )} x^{2} - 3 \, {\left (a b c - a^{2} d\right )} x}{6 \, a^{3} x^{3}} \]
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Time = 0.28 (sec) , antiderivative size = 99, normalized size of antiderivative = 1.15 \[ \int \frac {c+d x}{x^4 (a+b x)} \, dx=-\frac {{\left (b^{3} c - a b^{2} d\right )} \log \left ({\left | x \right |}\right )}{a^{4}} + \frac {{\left (b^{4} c - a b^{3} d\right )} \log \left ({\left | b x + a \right |}\right )}{a^{4} b} - \frac {2 \, a^{3} c + 6 \, {\left (a b^{2} c - a^{2} b d\right )} x^{2} - 3 \, {\left (a^{2} b c - a^{3} d\right )} x}{6 \, a^{4} x^{3}} \]
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Time = 0.40 (sec) , antiderivative size = 97, normalized size of antiderivative = 1.13 \[ \int \frac {c+d x}{x^4 (a+b x)} \, dx=\frac {2\,b^2\,\mathrm {atanh}\left (\frac {b^2\,\left (a\,d-b\,c\right )\,\left (a+2\,b\,x\right )}{a\,\left (b^3\,c-a\,b^2\,d\right )}\right )\,\left (a\,d-b\,c\right )}{a^4}-\frac {\frac {c}{3\,a}+\frac {x\,\left (a\,d-b\,c\right )}{2\,a^2}-\frac {b\,x^2\,\left (a\,d-b\,c\right )}{a^3}}{x^3} \]
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