Integrand size = 18, antiderivative size = 67 \[ \int \frac {(c+d x)^2}{x^3 (a+b x)} \, dx=-\frac {c^2}{2 a x^2}+\frac {c (b c-2 a d)}{a^2 x}+\frac {(b c-a d)^2 \log (x)}{a^3}-\frac {(b c-a d)^2 \log (a+b x)}{a^3} \]
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Time = 0.03 (sec) , antiderivative size = 67, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.056, Rules used = {90} \[ \int \frac {(c+d x)^2}{x^3 (a+b x)} \, dx=\frac {\log (x) (b c-a d)^2}{a^3}-\frac {(b c-a d)^2 \log (a+b x)}{a^3}+\frac {c (b c-2 a d)}{a^2 x}-\frac {c^2}{2 a x^2} \]
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Rule 90
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {c^2}{a x^3}+\frac {c (-b c+2 a d)}{a^2 x^2}+\frac {(-b c+a d)^2}{a^3 x}-\frac {b (-b c+a d)^2}{a^3 (a+b x)}\right ) \, dx \\ & = -\frac {c^2}{2 a x^2}+\frac {c (b c-2 a d)}{a^2 x}+\frac {(b c-a d)^2 \log (x)}{a^3}-\frac {(b c-a d)^2 \log (a+b x)}{a^3} \\ \end{align*}
Time = 0.04 (sec) , antiderivative size = 60, normalized size of antiderivative = 0.90 \[ \int \frac {(c+d x)^2}{x^3 (a+b x)} \, dx=-\frac {\frac {a c (a c-2 b c x+4 a d x)}{x^2}-2 (b c-a d)^2 \log (x)+2 (b c-a d)^2 \log (a+b x)}{2 a^3} \]
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Time = 0.44 (sec) , antiderivative size = 90, normalized size of antiderivative = 1.34
method | result | size |
default | \(-\frac {c^{2}}{2 a \,x^{2}}+\frac {\left (a^{2} d^{2}-2 a b c d +b^{2} c^{2}\right ) \ln \left (x \right )}{a^{3}}-\frac {c \left (2 a d -b c \right )}{a^{2} x}-\frac {\left (a^{2} d^{2}-2 a b c d +b^{2} c^{2}\right ) \ln \left (b x +a \right )}{a^{3}}\) | \(90\) |
norman | \(\frac {-\frac {c^{2}}{2 a}-\frac {c \left (2 a d -b c \right ) x}{a^{2}}}{x^{2}}+\frac {\left (a^{2} d^{2}-2 a b c d +b^{2} c^{2}\right ) \ln \left (x \right )}{a^{3}}-\frac {\left (a^{2} d^{2}-2 a b c d +b^{2} c^{2}\right ) \ln \left (b x +a \right )}{a^{3}}\) | \(90\) |
risch | \(\frac {-\frac {c^{2}}{2 a}-\frac {c \left (2 a d -b c \right ) x}{a^{2}}}{x^{2}}+\frac {\ln \left (-x \right ) d^{2}}{a}-\frac {2 \ln \left (-x \right ) b c d}{a^{2}}+\frac {\ln \left (-x \right ) b^{2} c^{2}}{a^{3}}-\frac {\ln \left (b x +a \right ) d^{2}}{a}+\frac {2 \ln \left (b x +a \right ) b c d}{a^{2}}-\frac {\ln \left (b x +a \right ) b^{2} c^{2}}{a^{3}}\) | \(113\) |
parallelrisch | \(\frac {2 \ln \left (x \right ) x^{2} a^{2} d^{2}-4 \ln \left (x \right ) x^{2} a b c d +2 \ln \left (x \right ) x^{2} b^{2} c^{2}-2 \ln \left (b x +a \right ) x^{2} a^{2} d^{2}+4 \ln \left (b x +a \right ) x^{2} a b c d -2 \ln \left (b x +a \right ) x^{2} b^{2} c^{2}-4 a^{2} c d x +2 a b \,c^{2} x -c^{2} a^{2}}{2 a^{3} x^{2}}\) | \(120\) |
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Time = 0.23 (sec) , antiderivative size = 93, normalized size of antiderivative = 1.39 \[ \int \frac {(c+d x)^2}{x^3 (a+b x)} \, dx=-\frac {a^{2} c^{2} + 2 \, {\left (b^{2} c^{2} - 2 \, a b c d + a^{2} d^{2}\right )} x^{2} \log \left (b x + a\right ) - 2 \, {\left (b^{2} c^{2} - 2 \, a b c d + a^{2} d^{2}\right )} x^{2} \log \left (x\right ) - 2 \, {\left (a b c^{2} - 2 \, a^{2} c d\right )} x}{2 \, a^{3} x^{2}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 187 vs. \(2 (58) = 116\).
Time = 0.35 (sec) , antiderivative size = 187, normalized size of antiderivative = 2.79 \[ \int \frac {(c+d x)^2}{x^3 (a+b x)} \, dx=\frac {- a c^{2} + x \left (- 4 a c d + 2 b c^{2}\right )}{2 a^{2} x^{2}} + \frac {\left (a d - b c\right )^{2} \log {\left (x + \frac {a^{3} d^{2} - 2 a^{2} b c d + a b^{2} c^{2} - a \left (a d - b c\right )^{2}}{2 a^{2} b d^{2} - 4 a b^{2} c d + 2 b^{3} c^{2}} \right )}}{a^{3}} - \frac {\left (a d - b c\right )^{2} \log {\left (x + \frac {a^{3} d^{2} - 2 a^{2} b c d + a b^{2} c^{2} + a \left (a d - b c\right )^{2}}{2 a^{2} b d^{2} - 4 a b^{2} c d + 2 b^{3} c^{2}} \right )}}{a^{3}} \]
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Time = 0.21 (sec) , antiderivative size = 88, normalized size of antiderivative = 1.31 \[ \int \frac {(c+d x)^2}{x^3 (a+b x)} \, dx=-\frac {{\left (b^{2} c^{2} - 2 \, a b c d + a^{2} d^{2}\right )} \log \left (b x + a\right )}{a^{3}} + \frac {{\left (b^{2} c^{2} - 2 \, a b c d + a^{2} d^{2}\right )} \log \left (x\right )}{a^{3}} - \frac {a c^{2} - 2 \, {\left (b c^{2} - 2 \, a c d\right )} x}{2 \, a^{2} x^{2}} \]
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Time = 0.28 (sec) , antiderivative size = 101, normalized size of antiderivative = 1.51 \[ \int \frac {(c+d x)^2}{x^3 (a+b x)} \, dx=\frac {{\left (b^{2} c^{2} - 2 \, a b c d + a^{2} d^{2}\right )} \log \left ({\left | x \right |}\right )}{a^{3}} - \frac {{\left (b^{3} c^{2} - 2 \, a b^{2} c d + a^{2} b d^{2}\right )} \log \left ({\left | b x + a \right |}\right )}{a^{3} b} - \frac {a^{2} c^{2} - 2 \, {\left (a b c^{2} - 2 \, a^{2} c d\right )} x}{2 \, a^{3} x^{2}} \]
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Time = 0.41 (sec) , antiderivative size = 89, normalized size of antiderivative = 1.33 \[ \int \frac {(c+d x)^2}{x^3 (a+b x)} \, dx=-\frac {\frac {c^2}{2\,a}+\frac {c\,x\,\left (2\,a\,d-b\,c\right )}{a^2}}{x^2}-\frac {2\,\mathrm {atanh}\left (\frac {{\left (a\,d-b\,c\right )}^2\,\left (a+2\,b\,x\right )}{a\,\left (a^2\,d^2-2\,a\,b\,c\,d+b^2\,c^2\right )}\right )\,{\left (a\,d-b\,c\right )}^2}{a^3} \]
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