Integrand size = 16, antiderivative size = 49 \[ \int \frac {(a+b x)^2 (A+B x)}{x^4} \, dx=-\frac {a^2 A}{3 x^3}-\frac {a (2 A b+a B)}{2 x^2}-\frac {b (A b+2 a B)}{x}+b^2 B \log (x) \]
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Time = 0.02 (sec) , antiderivative size = 49, 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 = {77} \[ \int \frac {(a+b x)^2 (A+B x)}{x^4} \, dx=-\frac {a^2 A}{3 x^3}-\frac {a (a B+2 A b)}{2 x^2}-\frac {b (2 a B+A b)}{x}+b^2 B \log (x) \]
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Rule 77
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {a^2 A}{x^4}+\frac {a (2 A b+a B)}{x^3}+\frac {b (A b+2 a B)}{x^2}+\frac {b^2 B}{x}\right ) \, dx \\ & = -\frac {a^2 A}{3 x^3}-\frac {a (2 A b+a B)}{2 x^2}-\frac {b (A b+2 a B)}{x}+b^2 B \log (x) \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 48, normalized size of antiderivative = 0.98 \[ \int \frac {(a+b x)^2 (A+B x)}{x^4} \, dx=-\frac {6 A b^2 x^2+6 a b x (A+2 B x)+a^2 (2 A+3 B x)}{6 x^3}+b^2 B \log (x) \]
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Time = 0.38 (sec) , antiderivative size = 46, normalized size of antiderivative = 0.94
method | result | size |
default | \(-\frac {a^{2} A}{3 x^{3}}-\frac {a \left (2 A b +B a \right )}{2 x^{2}}-\frac {b \left (A b +2 B a \right )}{x}+b^{2} B \ln \left (x \right )\) | \(46\) |
norman | \(\frac {\left (-a b A -\frac {1}{2} a^{2} B \right ) x +\left (-b^{2} A -2 a b B \right ) x^{2}-\frac {a^{2} A}{3}}{x^{3}}+b^{2} B \ln \left (x \right )\) | \(50\) |
risch | \(\frac {\left (-a b A -\frac {1}{2} a^{2} B \right ) x +\left (-b^{2} A -2 a b B \right ) x^{2}-\frac {a^{2} A}{3}}{x^{3}}+b^{2} B \ln \left (x \right )\) | \(50\) |
parallelrisch | \(-\frac {-6 b^{2} B \ln \left (x \right ) x^{3}+6 A \,b^{2} x^{2}+12 B a b \,x^{2}+6 a A b x +3 a^{2} B x +2 a^{2} A}{6 x^{3}}\) | \(54\) |
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Time = 0.22 (sec) , antiderivative size = 53, normalized size of antiderivative = 1.08 \[ \int \frac {(a+b x)^2 (A+B x)}{x^4} \, dx=\frac {6 \, B b^{2} x^{3} \log \left (x\right ) - 2 \, A a^{2} - 6 \, {\left (2 \, B a b + A b^{2}\right )} x^{2} - 3 \, {\left (B a^{2} + 2 \, A a b\right )} x}{6 \, x^{3}} \]
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Time = 0.28 (sec) , antiderivative size = 54, normalized size of antiderivative = 1.10 \[ \int \frac {(a+b x)^2 (A+B x)}{x^4} \, dx=B b^{2} \log {\left (x \right )} + \frac {- 2 A a^{2} + x^{2} \left (- 6 A b^{2} - 12 B a b\right ) + x \left (- 6 A a b - 3 B a^{2}\right )}{6 x^{3}} \]
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Time = 0.21 (sec) , antiderivative size = 50, normalized size of antiderivative = 1.02 \[ \int \frac {(a+b x)^2 (A+B x)}{x^4} \, dx=B b^{2} \log \left (x\right ) - \frac {2 \, A a^{2} + 6 \, {\left (2 \, B a b + A b^{2}\right )} x^{2} + 3 \, {\left (B a^{2} + 2 \, A a b\right )} x}{6 \, x^{3}} \]
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Time = 0.30 (sec) , antiderivative size = 51, normalized size of antiderivative = 1.04 \[ \int \frac {(a+b x)^2 (A+B x)}{x^4} \, dx=B b^{2} \log \left ({\left | x \right |}\right ) - \frac {2 \, A a^{2} + 6 \, {\left (2 \, B a b + A b^{2}\right )} x^{2} + 3 \, {\left (B a^{2} + 2 \, A a b\right )} x}{6 \, x^{3}} \]
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Time = 0.33 (sec) , antiderivative size = 48, normalized size of antiderivative = 0.98 \[ \int \frac {(a+b x)^2 (A+B x)}{x^4} \, dx=B\,b^2\,\ln \left (x\right )-\frac {x^2\,\left (A\,b^2+2\,B\,a\,b\right )+\frac {A\,a^2}{3}+x\,\left (\frac {B\,a^2}{2}+A\,b\,a\right )}{x^3} \]
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