Optimal. Leaf size=104 \[ \frac {a^3 (A b-a B)}{2 b^5 \left (a+b x^2\right )}+\frac {a^2 (3 A b-4 a B) \log \left (a+b x^2\right )}{2 b^5}-\frac {a x^2 (2 A b-3 a B)}{2 b^4}+\frac {x^4 (A b-2 a B)}{4 b^3}+\frac {B x^6}{6 b^2} \]
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Rubi [A] time = 0.13, antiderivative size = 104, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, integrand size = 20, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.100, Rules used = {446, 77} \[ \frac {a^3 (A b-a B)}{2 b^5 \left (a+b x^2\right )}+\frac {a^2 (3 A b-4 a B) \log \left (a+b x^2\right )}{2 b^5}+\frac {x^4 (A b-2 a B)}{4 b^3}-\frac {a x^2 (2 A b-3 a B)}{2 b^4}+\frac {B x^6}{6 b^2} \]
Antiderivative was successfully verified.
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Rule 77
Rule 446
Rubi steps
\begin {align*} \int \frac {x^7 \left (A+B x^2\right )}{\left (a+b x^2\right )^2} \, dx &=\frac {1}{2} \operatorname {Subst}\left (\int \frac {x^3 (A+B x)}{(a+b x)^2} \, dx,x,x^2\right )\\ &=\frac {1}{2} \operatorname {Subst}\left (\int \left (\frac {a (-2 A b+3 a B)}{b^4}+\frac {(A b-2 a B) x}{b^3}+\frac {B x^2}{b^2}+\frac {a^3 (-A b+a B)}{b^4 (a+b x)^2}-\frac {a^2 (-3 A b+4 a B)}{b^4 (a+b x)}\right ) \, dx,x,x^2\right )\\ &=-\frac {a (2 A b-3 a B) x^2}{2 b^4}+\frac {(A b-2 a B) x^4}{4 b^3}+\frac {B x^6}{6 b^2}+\frac {a^3 (A b-a B)}{2 b^5 \left (a+b x^2\right )}+\frac {a^2 (3 A b-4 a B) \log \left (a+b x^2\right )}{2 b^5}\\ \end {align*}
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Mathematica [A] time = 0.06, size = 93, normalized size = 0.89 \[ \frac {\frac {6 a^3 (A b-a B)}{a+b x^2}+6 a^2 (3 A b-4 a B) \log \left (a+b x^2\right )+3 b^2 x^4 (A b-2 a B)+6 a b x^2 (3 a B-2 A b)+2 b^3 B x^6}{12 b^5} \]
Antiderivative was successfully verified.
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fricas [A] time = 0.45, size = 148, normalized size = 1.42 \[ \frac {2 \, B b^{4} x^{8} - {\left (4 \, B a b^{3} - 3 \, A b^{4}\right )} x^{6} - 6 \, B a^{4} + 6 \, A a^{3} b + 3 \, {\left (4 \, B a^{2} b^{2} - 3 \, A a b^{3}\right )} x^{4} + 6 \, {\left (3 \, B a^{3} b - 2 \, A a^{2} b^{2}\right )} x^{2} - 6 \, {\left (4 \, B a^{4} - 3 \, A a^{3} b + {\left (4 \, B a^{3} b - 3 \, A a^{2} b^{2}\right )} x^{2}\right )} \log \left (b x^{2} + a\right )}{12 \, {\left (b^{6} x^{2} + a b^{5}\right )}} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.32, size = 135, normalized size = 1.30 \[ -\frac {{\left (4 \, B a^{3} - 3 \, A a^{2} b\right )} \log \left ({\left | b x^{2} + a \right |}\right )}{2 \, b^{5}} + \frac {2 \, B b^{4} x^{6} - 6 \, B a b^{3} x^{4} + 3 \, A b^{4} x^{4} + 18 \, B a^{2} b^{2} x^{2} - 12 \, A a b^{3} x^{2}}{12 \, b^{6}} + \frac {4 \, B a^{3} b x^{2} - 3 \, A a^{2} b^{2} x^{2} + 3 \, B a^{4} - 2 \, A a^{3} b}{2 \, {\left (b x^{2} + a\right )} b^{5}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.02, size = 122, normalized size = 1.17 \[ \frac {B \,x^{6}}{6 b^{2}}+\frac {A \,x^{4}}{4 b^{2}}-\frac {B a \,x^{4}}{2 b^{3}}-\frac {A a \,x^{2}}{b^{3}}+\frac {3 B \,a^{2} x^{2}}{2 b^{4}}+\frac {A \,a^{3}}{2 \left (b \,x^{2}+a \right ) b^{4}}+\frac {3 A \,a^{2} \ln \left (b \,x^{2}+a \right )}{2 b^{4}}-\frac {B \,a^{4}}{2 \left (b \,x^{2}+a \right ) b^{5}}-\frac {2 B \,a^{3} \ln \left (b \,x^{2}+a \right )}{b^{5}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 0.99, size = 107, normalized size = 1.03 \[ -\frac {B a^{4} - A a^{3} b}{2 \, {\left (b^{6} x^{2} + a b^{5}\right )}} + \frac {2 \, B b^{2} x^{6} - 3 \, {\left (2 \, B a b - A b^{2}\right )} x^{4} + 6 \, {\left (3 \, B a^{2} - 2 \, A a b\right )} x^{2}}{12 \, b^{4}} - \frac {{\left (4 \, B a^{3} - 3 \, A a^{2} b\right )} \log \left (b x^{2} + a\right )}{2 \, b^{5}} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 0.09, size = 121, normalized size = 1.16 \[ x^4\,\left (\frac {A}{4\,b^2}-\frac {B\,a}{2\,b^3}\right )-x^2\,\left (\frac {a\,\left (\frac {A}{b^2}-\frac {2\,B\,a}{b^3}\right )}{b}+\frac {B\,a^2}{2\,b^4}\right )+\frac {B\,x^6}{6\,b^2}-\frac {\ln \left (b\,x^2+a\right )\,\left (4\,B\,a^3-3\,A\,a^2\,b\right )}{2\,b^5}-\frac {B\,a^4-A\,a^3\,b}{2\,b\,\left (b^5\,x^2+a\,b^4\right )} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [A] time = 0.72, size = 104, normalized size = 1.00 \[ \frac {B x^{6}}{6 b^{2}} - \frac {a^{2} \left (- 3 A b + 4 B a\right ) \log {\left (a + b x^{2} \right )}}{2 b^{5}} + x^{4} \left (\frac {A}{4 b^{2}} - \frac {B a}{2 b^{3}}\right ) + x^{2} \left (- \frac {A a}{b^{3}} + \frac {3 B a^{2}}{2 b^{4}}\right ) + \frac {A a^{3} b - B a^{4}}{2 a b^{5} + 2 b^{6} x^{2}} \]
Verification of antiderivative is not currently implemented for this CAS.
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