Integrand size = 20, antiderivative size = 124 \[ \int \frac {A+B x^2}{x^7 \left (a+b x^2\right )^2} \, dx=-\frac {A}{6 a^2 x^6}+\frac {2 A b-a B}{4 a^3 x^4}-\frac {b (3 A b-2 a B)}{2 a^4 x^2}-\frac {b^2 (A b-a B)}{2 a^4 \left (a+b x^2\right )}-\frac {b^2 (4 A b-3 a B) \log (x)}{a^5}+\frac {b^2 (4 A b-3 a B) \log \left (a+b x^2\right )}{2 a^5} \]
[Out]
Time = 0.10 (sec) , antiderivative size = 124, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.100, Rules used = {457, 78} \[ \int \frac {A+B x^2}{x^7 \left (a+b x^2\right )^2} \, dx=\frac {b^2 (4 A b-3 a B) \log \left (a+b x^2\right )}{2 a^5}-\frac {b^2 \log (x) (4 A b-3 a B)}{a^5}-\frac {b^2 (A b-a B)}{2 a^4 \left (a+b x^2\right )}-\frac {b (3 A b-2 a B)}{2 a^4 x^2}+\frac {2 A b-a B}{4 a^3 x^4}-\frac {A}{6 a^2 x^6} \]
[In]
[Out]
Rule 78
Rule 457
Rubi steps \begin{align*} \text {integral}& = \frac {1}{2} \text {Subst}\left (\int \frac {A+B x}{x^4 (a+b x)^2} \, dx,x,x^2\right ) \\ & = \frac {1}{2} \text {Subst}\left (\int \left (\frac {A}{a^2 x^4}+\frac {-2 A b+a B}{a^3 x^3}-\frac {b (-3 A b+2 a B)}{a^4 x^2}+\frac {b^2 (-4 A b+3 a B)}{a^5 x}-\frac {b^3 (-A b+a B)}{a^4 (a+b x)^2}-\frac {b^3 (-4 A b+3 a B)}{a^5 (a+b x)}\right ) \, dx,x,x^2\right ) \\ & = -\frac {A}{6 a^2 x^6}+\frac {2 A b-a B}{4 a^3 x^4}-\frac {b (3 A b-2 a B)}{2 a^4 x^2}-\frac {b^2 (A b-a B)}{2 a^4 \left (a+b x^2\right )}-\frac {b^2 (4 A b-3 a B) \log (x)}{a^5}+\frac {b^2 (4 A b-3 a B) \log \left (a+b x^2\right )}{2 a^5} \\ \end{align*}
Time = 0.06 (sec) , antiderivative size = 110, normalized size of antiderivative = 0.89 \[ \int \frac {A+B x^2}{x^7 \left (a+b x^2\right )^2} \, dx=\frac {-\frac {2 a^3 A}{x^6}-\frac {3 a^2 (-2 A b+a B)}{x^4}+\frac {6 a b (-3 A b+2 a B)}{x^2}+\frac {6 a b^2 (-A b+a B)}{a+b x^2}+12 b^2 (-4 A b+3 a B) \log (x)+6 b^2 (4 A b-3 a B) \log \left (a+b x^2\right )}{12 a^5} \]
[In]
[Out]
Time = 2.48 (sec) , antiderivative size = 117, normalized size of antiderivative = 0.94
method | result | size |
default | \(-\frac {A}{6 a^{2} x^{6}}-\frac {-2 A b +B a}{4 x^{4} a^{3}}-\frac {b \left (3 A b -2 B a \right )}{2 a^{4} x^{2}}-\frac {b^{2} \left (4 A b -3 B a \right ) \ln \left (x \right )}{a^{5}}+\frac {b^{3} \left (\frac {\left (4 A b -3 B a \right ) \ln \left (b \,x^{2}+a \right )}{b}-\frac {a \left (A b -B a \right )}{b \left (b \,x^{2}+a \right )}\right )}{2 a^{5}}\) | \(117\) |
norman | \(\frac {-\frac {A}{6 a}+\frac {\left (4 A b -3 B a \right ) x^{2}}{12 a^{2}}-\frac {b \left (4 A b -3 B a \right ) x^{4}}{4 a^{3}}+\frac {b \left (4 b^{3} A -3 a \,b^{2} B \right ) x^{8}}{2 a^{5}}}{x^{6} \left (b \,x^{2}+a \right )}-\frac {b^{2} \left (4 A b -3 B a \right ) \ln \left (x \right )}{a^{5}}+\frac {b^{2} \left (4 A b -3 B a \right ) \ln \left (b \,x^{2}+a \right )}{2 a^{5}}\) | \(124\) |
risch | \(\frac {-\frac {b^{2} \left (4 A b -3 B a \right ) x^{6}}{2 a^{4}}-\frac {b \left (4 A b -3 B a \right ) x^{4}}{4 a^{3}}+\frac {\left (4 A b -3 B a \right ) x^{2}}{12 a^{2}}-\frac {A}{6 a}}{x^{6} \left (b \,x^{2}+a \right )}-\frac {4 b^{3} \ln \left (x \right ) A}{a^{5}}+\frac {3 b^{2} \ln \left (x \right ) B}{a^{4}}+\frac {2 b^{3} \ln \left (-b \,x^{2}-a \right ) A}{a^{5}}-\frac {3 b^{2} \ln \left (-b \,x^{2}-a \right ) B}{2 a^{4}}\) | \(139\) |
parallelrisch | \(-\frac {48 A \ln \left (x \right ) x^{8} b^{4}-24 A \ln \left (b \,x^{2}+a \right ) x^{8} b^{4}-36 B \ln \left (x \right ) x^{8} a \,b^{3}+18 B \ln \left (b \,x^{2}+a \right ) x^{8} a \,b^{3}-24 A \,x^{8} b^{4}+18 B \,x^{8} a \,b^{3}+48 A \ln \left (x \right ) x^{6} a \,b^{3}-24 A \ln \left (b \,x^{2}+a \right ) x^{6} a \,b^{3}-36 B \ln \left (x \right ) x^{6} a^{2} b^{2}+18 B \ln \left (b \,x^{2}+a \right ) x^{6} a^{2} b^{2}+12 A \,x^{4} a^{2} b^{2}-9 B \,x^{4} a^{3} b -4 A \,x^{2} a^{3} b +3 B \,x^{2} a^{4}+2 A \,a^{4}}{12 a^{5} x^{6} \left (b \,x^{2}+a \right )}\) | \(207\) |
[In]
[Out]
none
Time = 0.30 (sec) , antiderivative size = 184, normalized size of antiderivative = 1.48 \[ \int \frac {A+B x^2}{x^7 \left (a+b x^2\right )^2} \, dx=\frac {6 \, {\left (3 \, B a^{2} b^{2} - 4 \, A a b^{3}\right )} x^{6} - 2 \, A a^{4} + 3 \, {\left (3 \, B a^{3} b - 4 \, A a^{2} b^{2}\right )} x^{4} - {\left (3 \, B a^{4} - 4 \, A a^{3} b\right )} x^{2} - 6 \, {\left ({\left (3 \, B a b^{3} - 4 \, A b^{4}\right )} x^{8} + {\left (3 \, B a^{2} b^{2} - 4 \, A a b^{3}\right )} x^{6}\right )} \log \left (b x^{2} + a\right ) + 12 \, {\left ({\left (3 \, B a b^{3} - 4 \, A b^{4}\right )} x^{8} + {\left (3 \, B a^{2} b^{2} - 4 \, A a b^{3}\right )} x^{6}\right )} \log \left (x\right )}{12 \, {\left (a^{5} b x^{8} + a^{6} x^{6}\right )}} \]
[In]
[Out]
Time = 0.68 (sec) , antiderivative size = 129, normalized size of antiderivative = 1.04 \[ \int \frac {A+B x^2}{x^7 \left (a+b x^2\right )^2} \, dx=\frac {- 2 A a^{3} + x^{6} \left (- 24 A b^{3} + 18 B a b^{2}\right ) + x^{4} \left (- 12 A a b^{2} + 9 B a^{2} b\right ) + x^{2} \cdot \left (4 A a^{2} b - 3 B a^{3}\right )}{12 a^{5} x^{6} + 12 a^{4} b x^{8}} + \frac {b^{2} \left (- 4 A b + 3 B a\right ) \log {\left (x \right )}}{a^{5}} - \frac {b^{2} \left (- 4 A b + 3 B a\right ) \log {\left (\frac {a}{b} + x^{2} \right )}}{2 a^{5}} \]
[In]
[Out]
none
Time = 0.19 (sec) , antiderivative size = 136, normalized size of antiderivative = 1.10 \[ \int \frac {A+B x^2}{x^7 \left (a+b x^2\right )^2} \, dx=\frac {6 \, {\left (3 \, B a b^{2} - 4 \, A b^{3}\right )} x^{6} + 3 \, {\left (3 \, B a^{2} b - 4 \, A a b^{2}\right )} x^{4} - 2 \, A a^{3} - {\left (3 \, B a^{3} - 4 \, A a^{2} b\right )} x^{2}}{12 \, {\left (a^{4} b x^{8} + a^{5} x^{6}\right )}} - \frac {{\left (3 \, B a b^{2} - 4 \, A b^{3}\right )} \log \left (b x^{2} + a\right )}{2 \, a^{5}} + \frac {{\left (3 \, B a b^{2} - 4 \, A b^{3}\right )} \log \left (x^{2}\right )}{2 \, a^{5}} \]
[In]
[Out]
none
Time = 0.28 (sec) , antiderivative size = 178, normalized size of antiderivative = 1.44 \[ \int \frac {A+B x^2}{x^7 \left (a+b x^2\right )^2} \, dx=\frac {{\left (3 \, B a b^{2} - 4 \, A b^{3}\right )} \log \left (x^{2}\right )}{2 \, a^{5}} - \frac {{\left (3 \, B a b^{3} - 4 \, A b^{4}\right )} \log \left ({\left | b x^{2} + a \right |}\right )}{2 \, a^{5} b} + \frac {3 \, B a b^{3} x^{2} - 4 \, A b^{4} x^{2} + 4 \, B a^{2} b^{2} - 5 \, A a b^{3}}{2 \, {\left (b x^{2} + a\right )} a^{5}} - \frac {33 \, B a b^{2} x^{6} - 44 \, A b^{3} x^{6} - 12 \, B a^{2} b x^{4} + 18 \, A a b^{2} x^{4} + 3 \, B a^{3} x^{2} - 6 \, A a^{2} b x^{2} + 2 \, A a^{3}}{12 \, a^{5} x^{6}} \]
[In]
[Out]
Time = 5.35 (sec) , antiderivative size = 126, normalized size of antiderivative = 1.02 \[ \int \frac {A+B x^2}{x^7 \left (a+b x^2\right )^2} \, dx=\frac {\ln \left (b\,x^2+a\right )\,\left (4\,A\,b^3-3\,B\,a\,b^2\right )}{2\,a^5}-\frac {\frac {A}{6\,a}-\frac {x^2\,\left (4\,A\,b-3\,B\,a\right )}{12\,a^2}+\frac {b^2\,x^6\,\left (4\,A\,b-3\,B\,a\right )}{2\,a^4}+\frac {b\,x^4\,\left (4\,A\,b-3\,B\,a\right )}{4\,a^3}}{b\,x^8+a\,x^6}-\frac {\ln \left (x\right )\,\left (4\,A\,b^3-3\,B\,a\,b^2\right )}{a^5} \]
[In]
[Out]