Optimal. Leaf size=90 \[ -\frac {b (3 A b-4 a B) \tanh ^{-1}\left (\frac {\sqrt {a+b x^3}}{\sqrt {a}}\right )}{12 a^{5/2}}+\frac {\sqrt {a+b x^3} (3 A b-4 a B)}{12 a^2 x^3}-\frac {A \sqrt {a+b x^3}}{6 a x^6} \]
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Rubi [A] time = 0.07, antiderivative size = 90, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 5, integrand size = 22, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.227, Rules used = {446, 78, 51, 63, 208} \[ \frac {\sqrt {a+b x^3} (3 A b-4 a B)}{12 a^2 x^3}-\frac {b (3 A b-4 a B) \tanh ^{-1}\left (\frac {\sqrt {a+b x^3}}{\sqrt {a}}\right )}{12 a^{5/2}}-\frac {A \sqrt {a+b x^3}}{6 a x^6} \]
Antiderivative was successfully verified.
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Rule 51
Rule 63
Rule 78
Rule 208
Rule 446
Rubi steps
\begin {align*} \int \frac {A+B x^3}{x^7 \sqrt {a+b x^3}} \, dx &=\frac {1}{3} \operatorname {Subst}\left (\int \frac {A+B x}{x^3 \sqrt {a+b x}} \, dx,x,x^3\right )\\ &=-\frac {A \sqrt {a+b x^3}}{6 a x^6}+\frac {\left (-\frac {3 A b}{2}+2 a B\right ) \operatorname {Subst}\left (\int \frac {1}{x^2 \sqrt {a+b x}} \, dx,x,x^3\right )}{6 a}\\ &=-\frac {A \sqrt {a+b x^3}}{6 a x^6}+\frac {(3 A b-4 a B) \sqrt {a+b x^3}}{12 a^2 x^3}+\frac {(b (3 A b-4 a B)) \operatorname {Subst}\left (\int \frac {1}{x \sqrt {a+b x}} \, dx,x,x^3\right )}{24 a^2}\\ &=-\frac {A \sqrt {a+b x^3}}{6 a x^6}+\frac {(3 A b-4 a B) \sqrt {a+b x^3}}{12 a^2 x^3}+\frac {(3 A b-4 a B) \operatorname {Subst}\left (\int \frac {1}{-\frac {a}{b}+\frac {x^2}{b}} \, dx,x,\sqrt {a+b x^3}\right )}{12 a^2}\\ &=-\frac {A \sqrt {a+b x^3}}{6 a x^6}+\frac {(3 A b-4 a B) \sqrt {a+b x^3}}{12 a^2 x^3}-\frac {b (3 A b-4 a B) \tanh ^{-1}\left (\frac {\sqrt {a+b x^3}}{\sqrt {a}}\right )}{12 a^{5/2}}\\ \end {align*}
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Mathematica [A] time = 0.29, size = 81, normalized size = 0.90 \[ \frac {\sqrt {a+b x^3} \left (b \left (2 a B-\frac {3 A b}{2}\right ) \left (\frac {\tanh ^{-1}\left (\sqrt {\frac {b x^3}{a}+1}\right )}{\sqrt {\frac {b x^3}{a}+1}}-\frac {a}{b x^3}\right )-\frac {a^2 A}{x^6}\right )}{6 a^3} \]
Antiderivative was successfully verified.
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fricas [A] time = 1.09, size = 173, normalized size = 1.92 \[ \left [-\frac {{\left (4 \, B a b - 3 \, A b^{2}\right )} \sqrt {a} x^{6} \log \left (\frac {b x^{3} - 2 \, \sqrt {b x^{3} + a} \sqrt {a} + 2 \, a}{x^{3}}\right ) + 2 \, {\left ({\left (4 \, B a^{2} - 3 \, A a b\right )} x^{3} + 2 \, A a^{2}\right )} \sqrt {b x^{3} + a}}{24 \, a^{3} x^{6}}, -\frac {{\left (4 \, B a b - 3 \, A b^{2}\right )} \sqrt {-a} x^{6} \arctan \left (\frac {\sqrt {b x^{3} + a} \sqrt {-a}}{a}\right ) + {\left ({\left (4 \, B a^{2} - 3 \, A a b\right )} x^{3} + 2 \, A a^{2}\right )} \sqrt {b x^{3} + a}}{12 \, a^{3} x^{6}}\right ] \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.19, size = 121, normalized size = 1.34 \[ -\frac {\frac {{\left (4 \, B a b^{2} - 3 \, A b^{3}\right )} \arctan \left (\frac {\sqrt {b x^{3} + a}}{\sqrt {-a}}\right )}{\sqrt {-a} a^{2}} + \frac {4 \, {\left (b x^{3} + a\right )}^{\frac {3}{2}} B a b^{2} - 4 \, \sqrt {b x^{3} + a} B a^{2} b^{2} - 3 \, {\left (b x^{3} + a\right )}^{\frac {3}{2}} A b^{3} + 5 \, \sqrt {b x^{3} + a} A a b^{3}}{a^{2} b^{2} x^{6}}}{12 \, b} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.08, size = 102, normalized size = 1.13 \[ \left (-\frac {b^{2} \arctanh \left (\frac {\sqrt {b \,x^{3}+a}}{\sqrt {a}}\right )}{4 a^{\frac {5}{2}}}+\frac {\sqrt {b \,x^{3}+a}\, b}{4 a^{2} x^{3}}-\frac {\sqrt {b \,x^{3}+a}}{6 a \,x^{6}}\right ) A +\left (\frac {b \arctanh \left (\frac {\sqrt {b \,x^{3}+a}}{\sqrt {a}}\right )}{3 a^{\frac {3}{2}}}-\frac {\sqrt {b \,x^{3}+a}}{3 a \,x^{3}}\right ) B \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [B] time = 1.20, size = 178, normalized size = 1.98 \[ -\frac {1}{6} \, B {\left (\frac {2 \, \sqrt {b x^{3} + a} b}{{\left (b x^{3} + a\right )} a - a^{2}} + \frac {b \log \left (\frac {\sqrt {b x^{3} + a} - \sqrt {a}}{\sqrt {b x^{3} + a} + \sqrt {a}}\right )}{a^{\frac {3}{2}}}\right )} + \frac {1}{24} \, A {\left (\frac {3 \, b^{2} \log \left (\frac {\sqrt {b x^{3} + a} - \sqrt {a}}{\sqrt {b x^{3} + a} + \sqrt {a}}\right )}{a^{\frac {5}{2}}} + \frac {2 \, {\left (3 \, {\left (b x^{3} + a\right )}^{\frac {3}{2}} b^{2} - 5 \, \sqrt {b x^{3} + a} a b^{2}\right )}}{{\left (b x^{3} + a\right )}^{2} a^{2} - 2 \, {\left (b x^{3} + a\right )} a^{3} + a^{4}}\right )} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 2.99, size = 95, normalized size = 1.06 \[ \frac {\sqrt {b\,x^3+a}\,\left (3\,A\,b-4\,B\,a\right )}{12\,a^2\,x^3}-\frac {A\,\sqrt {b\,x^3+a}}{6\,a\,x^6}+\frac {b\,\ln \left (\frac {{\left (\sqrt {b\,x^3+a}-\sqrt {a}\right )}^3\,\left (\sqrt {b\,x^3+a}+\sqrt {a}\right )}{x^6}\right )\,\left (3\,A\,b-4\,B\,a\right )}{24\,a^{5/2}} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [B] time = 71.18, size = 163, normalized size = 1.81 \[ - \frac {A}{6 \sqrt {b} x^{\frac {15}{2}} \sqrt {\frac {a}{b x^{3}} + 1}} + \frac {A \sqrt {b}}{12 a x^{\frac {9}{2}} \sqrt {\frac {a}{b x^{3}} + 1}} + \frac {A b^{\frac {3}{2}}}{4 a^{2} x^{\frac {3}{2}} \sqrt {\frac {a}{b x^{3}} + 1}} - \frac {A b^{2} \operatorname {asinh}{\left (\frac {\sqrt {a}}{\sqrt {b} x^{\frac {3}{2}}} \right )}}{4 a^{\frac {5}{2}}} - \frac {B \sqrt {b} \sqrt {\frac {a}{b x^{3}} + 1}}{3 a x^{\frac {3}{2}}} + \frac {B b \operatorname {asinh}{\left (\frac {\sqrt {a}}{\sqrt {b} x^{\frac {3}{2}}} \right )}}{3 a^{\frac {3}{2}}} \]
Verification of antiderivative is not currently implemented for this CAS.
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