Optimal. Leaf size=115 \[ -\frac {\log \left (\sqrt [3]{a}+\sqrt [3]{b} \sqrt [3]{x}\right )}{\sqrt [3]{a} b^{5/3}}+\frac {\log (a+b x)}{3 \sqrt [3]{a} b^{5/3}}-\frac {2 \tan ^{-1}\left (\frac {\sqrt [3]{a}-2 \sqrt [3]{b} \sqrt [3]{x}}{\sqrt {3} \sqrt [3]{a}}\right )}{\sqrt {3} \sqrt [3]{a} b^{5/3}}-\frac {x^{2/3}}{b (a+b x)} \]
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Rubi [A] time = 0.04, antiderivative size = 115, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 5, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.385, Rules used = {47, 56, 617, 204, 31} \[ -\frac {\log \left (\sqrt [3]{a}+\sqrt [3]{b} \sqrt [3]{x}\right )}{\sqrt [3]{a} b^{5/3}}+\frac {\log (a+b x)}{3 \sqrt [3]{a} b^{5/3}}-\frac {2 \tan ^{-1}\left (\frac {\sqrt [3]{a}-2 \sqrt [3]{b} \sqrt [3]{x}}{\sqrt {3} \sqrt [3]{a}}\right )}{\sqrt {3} \sqrt [3]{a} b^{5/3}}-\frac {x^{2/3}}{b (a+b x)} \]
Antiderivative was successfully verified.
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Rule 31
Rule 47
Rule 56
Rule 204
Rule 617
Rubi steps
\begin {align*} \int \frac {x^{2/3}}{(a+b x)^2} \, dx &=-\frac {x^{2/3}}{b (a+b x)}+\frac {2 \int \frac {1}{\sqrt [3]{x} (a+b x)} \, dx}{3 b}\\ &=-\frac {x^{2/3}}{b (a+b x)}+\frac {\log (a+b x)}{3 \sqrt [3]{a} b^{5/3}}+\frac {\operatorname {Subst}\left (\int \frac {1}{\frac {a^{2/3}}{b^{2/3}}-\frac {\sqrt [3]{a} x}{\sqrt [3]{b}}+x^2} \, dx,x,\sqrt [3]{x}\right )}{b^2}-\frac {\operatorname {Subst}\left (\int \frac {1}{\frac {\sqrt [3]{a}}{\sqrt [3]{b}}+x} \, dx,x,\sqrt [3]{x}\right )}{\sqrt [3]{a} b^{5/3}}\\ &=-\frac {x^{2/3}}{b (a+b x)}-\frac {\log \left (\sqrt [3]{a}+\sqrt [3]{b} \sqrt [3]{x}\right )}{\sqrt [3]{a} b^{5/3}}+\frac {\log (a+b x)}{3 \sqrt [3]{a} b^{5/3}}+\frac {2 \operatorname {Subst}\left (\int \frac {1}{-3-x^2} \, dx,x,1-\frac {2 \sqrt [3]{b} \sqrt [3]{x}}{\sqrt [3]{a}}\right )}{\sqrt [3]{a} b^{5/3}}\\ &=-\frac {x^{2/3}}{b (a+b x)}-\frac {2 \tan ^{-1}\left (\frac {1-\frac {2 \sqrt [3]{b} \sqrt [3]{x}}{\sqrt [3]{a}}}{\sqrt {3}}\right )}{\sqrt {3} \sqrt [3]{a} b^{5/3}}-\frac {\log \left (\sqrt [3]{a}+\sqrt [3]{b} \sqrt [3]{x}\right )}{\sqrt [3]{a} b^{5/3}}+\frac {\log (a+b x)}{3 \sqrt [3]{a} b^{5/3}}\\ \end {align*}
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Mathematica [C] time = 0.00, size = 27, normalized size = 0.23 \[ \frac {3 x^{5/3} \, _2F_1\left (\frac {5}{3},2;\frac {8}{3};-\frac {b x}{a}\right )}{5 a^2} \]
Antiderivative was successfully verified.
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fricas [B] time = 0.48, size = 394, normalized size = 3.43 \[ \left [-\frac {3 \, a b^{2} x^{\frac {2}{3}} - 3 \, \sqrt {\frac {1}{3}} {\left (a b^{2} x + a^{2} b\right )} \sqrt {\frac {\left (-a b^{2}\right )^{\frac {1}{3}}}{a}} \log \left (\frac {2 \, b^{2} x - a b + 3 \, \sqrt {\frac {1}{3}} {\left (a b x^{\frac {1}{3}} + \left (-a b^{2}\right )^{\frac {1}{3}} a + 2 \, \left (-a b^{2}\right )^{\frac {2}{3}} x^{\frac {2}{3}}\right )} \sqrt {\frac {\left (-a b^{2}\right )^{\frac {1}{3}}}{a}} - 3 \, \left (-a b^{2}\right )^{\frac {2}{3}} x^{\frac {1}{3}}}{b x + a}\right ) - \left (-a b^{2}\right )^{\frac {2}{3}} {\left (b x + a\right )} \log \left (b^{2} x^{\frac {2}{3}} + \left (-a b^{2}\right )^{\frac {1}{3}} b x^{\frac {1}{3}} + \left (-a b^{2}\right )^{\frac {2}{3}}\right ) + 2 \, \left (-a b^{2}\right )^{\frac {2}{3}} {\left (b x + a\right )} \log \left (b x^{\frac {1}{3}} - \left (-a b^{2}\right )^{\frac {1}{3}}\right )}{3 \, {\left (a b^{4} x + a^{2} b^{3}\right )}}, -\frac {3 \, a b^{2} x^{\frac {2}{3}} - 6 \, \sqrt {\frac {1}{3}} {\left (a b^{2} x + a^{2} b\right )} \sqrt {-\frac {\left (-a b^{2}\right )^{\frac {1}{3}}}{a}} \arctan \left (\frac {\sqrt {\frac {1}{3}} {\left (2 \, b x^{\frac {1}{3}} + \left (-a b^{2}\right )^{\frac {1}{3}}\right )} \sqrt {-\frac {\left (-a b^{2}\right )^{\frac {1}{3}}}{a}}}{b}\right ) - \left (-a b^{2}\right )^{\frac {2}{3}} {\left (b x + a\right )} \log \left (b^{2} x^{\frac {2}{3}} + \left (-a b^{2}\right )^{\frac {1}{3}} b x^{\frac {1}{3}} + \left (-a b^{2}\right )^{\frac {2}{3}}\right ) + 2 \, \left (-a b^{2}\right )^{\frac {2}{3}} {\left (b x + a\right )} \log \left (b x^{\frac {1}{3}} - \left (-a b^{2}\right )^{\frac {1}{3}}\right )}{3 \, {\left (a b^{4} x + a^{2} b^{3}\right )}}\right ] \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 1.20, size = 136, normalized size = 1.18 \[ -\frac {2 \, \left (-\frac {a}{b}\right )^{\frac {2}{3}} \log \left ({\left | x^{\frac {1}{3}} - \left (-\frac {a}{b}\right )^{\frac {1}{3}} \right |}\right )}{3 \, a b} - \frac {x^{\frac {2}{3}}}{{\left (b x + a\right )} b} - \frac {2 \, \sqrt {3} \left (-a b^{2}\right )^{\frac {2}{3}} \arctan \left (\frac {\sqrt {3} {\left (2 \, x^{\frac {1}{3}} + \left (-\frac {a}{b}\right )^{\frac {1}{3}}\right )}}{3 \, \left (-\frac {a}{b}\right )^{\frac {1}{3}}}\right )}{3 \, a b^{3}} + \frac {\left (-a b^{2}\right )^{\frac {2}{3}} \log \left (x^{\frac {2}{3}} + x^{\frac {1}{3}} \left (-\frac {a}{b}\right )^{\frac {1}{3}} + \left (-\frac {a}{b}\right )^{\frac {2}{3}}\right )}{3 \, a b^{3}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.01, size = 112, normalized size = 0.97 \[ -\frac {x^{\frac {2}{3}}}{\left (b x +a \right ) b}+\frac {2 \sqrt {3}\, \arctan \left (\frac {\sqrt {3}\, \left (\frac {2 x^{\frac {1}{3}}}{\left (\frac {a}{b}\right )^{\frac {1}{3}}}-1\right )}{3}\right )}{3 \left (\frac {a}{b}\right )^{\frac {1}{3}} b^{2}}-\frac {2 \ln \left (x^{\frac {1}{3}}+\left (\frac {a}{b}\right )^{\frac {1}{3}}\right )}{3 \left (\frac {a}{b}\right )^{\frac {1}{3}} b^{2}}+\frac {\ln \left (x^{\frac {2}{3}}-\left (\frac {a}{b}\right )^{\frac {1}{3}} x^{\frac {1}{3}}+\left (\frac {a}{b}\right )^{\frac {2}{3}}\right )}{3 \left (\frac {a}{b}\right )^{\frac {1}{3}} b^{2}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 2.99, size = 120, normalized size = 1.04 \[ -\frac {x^{\frac {2}{3}}}{b^{2} x + a b} + \frac {2 \, \sqrt {3} \arctan \left (\frac {\sqrt {3} {\left (2 \, x^{\frac {1}{3}} - \left (\frac {a}{b}\right )^{\frac {1}{3}}\right )}}{3 \, \left (\frac {a}{b}\right )^{\frac {1}{3}}}\right )}{3 \, b^{2} \left (\frac {a}{b}\right )^{\frac {1}{3}}} + \frac {\log \left (x^{\frac {2}{3}} - x^{\frac {1}{3}} \left (\frac {a}{b}\right )^{\frac {1}{3}} + \left (\frac {a}{b}\right )^{\frac {2}{3}}\right )}{3 \, b^{2} \left (\frac {a}{b}\right )^{\frac {1}{3}}} - \frac {2 \, \log \left (x^{\frac {1}{3}} + \left (\frac {a}{b}\right )^{\frac {1}{3}}\right )}{3 \, b^{2} \left (\frac {a}{b}\right )^{\frac {1}{3}}} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 0.24, size = 142, normalized size = 1.23 \[ \frac {2\,\ln \left (\frac {4\,x^{1/3}}{b}-\frac {4\,{\left (-a\right )}^{1/3}}{b^{4/3}}\right )}{3\,{\left (-a\right )}^{1/3}\,b^{5/3}}-\frac {x^{2/3}}{b\,\left (a+b\,x\right )}+\frac {\ln \left (\frac {4\,x^{1/3}}{b}-\frac {{\left (-a\right )}^{1/3}\,{\left (-1+\sqrt {3}\,1{}\mathrm {i}\right )}^2}{b^{4/3}}\right )\,\left (-1+\sqrt {3}\,1{}\mathrm {i}\right )}{3\,{\left (-a\right )}^{1/3}\,b^{5/3}}-\frac {\ln \left (\frac {4\,x^{1/3}}{b}-\frac {{\left (-a\right )}^{1/3}\,{\left (1+\sqrt {3}\,1{}\mathrm {i}\right )}^2}{b^{4/3}}\right )\,\left (1+\sqrt {3}\,1{}\mathrm {i}\right )}{3\,{\left (-a\right )}^{1/3}\,b^{5/3}} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [A] time = 106.98, size = 787, normalized size = 6.84 \[ \begin {cases} \frac {\tilde {\infty }}{\sqrt [3]{x}} & \text {for}\: a = 0 \wedge b = 0 \\\frac {3 x^{\frac {5}{3}}}{5 a^{2}} & \text {for}\: b = 0 \\- \frac {3}{b^{2} \sqrt [3]{x}} & \text {for}\: a = 0 \\- \frac {3 \sqrt [3]{-1} \sqrt [3]{a} b x^{\frac {2}{3}} \sqrt [3]{\frac {1}{b}}}{3 \sqrt [3]{-1} a^{\frac {4}{3}} b^{2} \sqrt [3]{\frac {1}{b}} + 3 \sqrt [3]{-1} \sqrt [3]{a} b^{3} x \sqrt [3]{\frac {1}{b}}} + \frac {2 a \log {\left (- \sqrt [3]{-1} \sqrt [3]{a} \sqrt [3]{\frac {1}{b}} + \sqrt [3]{x} \right )}}{3 \sqrt [3]{-1} a^{\frac {4}{3}} b^{2} \sqrt [3]{\frac {1}{b}} + 3 \sqrt [3]{-1} \sqrt [3]{a} b^{3} x \sqrt [3]{\frac {1}{b}}} - \frac {a \log {\left (4 \left (-1\right )^{\frac {2}{3}} a^{\frac {2}{3}} \left (\frac {1}{b}\right )^{\frac {2}{3}} + 4 \sqrt [3]{-1} \sqrt [3]{a} \sqrt [3]{x} \sqrt [3]{\frac {1}{b}} + 4 x^{\frac {2}{3}} \right )}}{3 \sqrt [3]{-1} a^{\frac {4}{3}} b^{2} \sqrt [3]{\frac {1}{b}} + 3 \sqrt [3]{-1} \sqrt [3]{a} b^{3} x \sqrt [3]{\frac {1}{b}}} + \frac {2 \sqrt {3} a \operatorname {atan}{\left (\frac {\sqrt {3}}{3} - \frac {2 \left (-1\right )^{\frac {2}{3}} \sqrt {3} \sqrt [3]{x}}{3 \sqrt [3]{a} \sqrt [3]{\frac {1}{b}}} \right )}}{3 \sqrt [3]{-1} a^{\frac {4}{3}} b^{2} \sqrt [3]{\frac {1}{b}} + 3 \sqrt [3]{-1} \sqrt [3]{a} b^{3} x \sqrt [3]{\frac {1}{b}}} + \frac {2 a \log {\relax (2 )}}{3 \sqrt [3]{-1} a^{\frac {4}{3}} b^{2} \sqrt [3]{\frac {1}{b}} + 3 \sqrt [3]{-1} \sqrt [3]{a} b^{3} x \sqrt [3]{\frac {1}{b}}} + \frac {2 b x \log {\left (- \sqrt [3]{-1} \sqrt [3]{a} \sqrt [3]{\frac {1}{b}} + \sqrt [3]{x} \right )}}{3 \sqrt [3]{-1} a^{\frac {4}{3}} b^{2} \sqrt [3]{\frac {1}{b}} + 3 \sqrt [3]{-1} \sqrt [3]{a} b^{3} x \sqrt [3]{\frac {1}{b}}} - \frac {b x \log {\left (4 \left (-1\right )^{\frac {2}{3}} a^{\frac {2}{3}} \left (\frac {1}{b}\right )^{\frac {2}{3}} + 4 \sqrt [3]{-1} \sqrt [3]{a} \sqrt [3]{x} \sqrt [3]{\frac {1}{b}} + 4 x^{\frac {2}{3}} \right )}}{3 \sqrt [3]{-1} a^{\frac {4}{3}} b^{2} \sqrt [3]{\frac {1}{b}} + 3 \sqrt [3]{-1} \sqrt [3]{a} b^{3} x \sqrt [3]{\frac {1}{b}}} + \frac {2 \sqrt {3} b x \operatorname {atan}{\left (\frac {\sqrt {3}}{3} - \frac {2 \left (-1\right )^{\frac {2}{3}} \sqrt {3} \sqrt [3]{x}}{3 \sqrt [3]{a} \sqrt [3]{\frac {1}{b}}} \right )}}{3 \sqrt [3]{-1} a^{\frac {4}{3}} b^{2} \sqrt [3]{\frac {1}{b}} + 3 \sqrt [3]{-1} \sqrt [3]{a} b^{3} x \sqrt [3]{\frac {1}{b}}} + \frac {2 b x \log {\relax (2 )}}{3 \sqrt [3]{-1} a^{\frac {4}{3}} b^{2} \sqrt [3]{\frac {1}{b}} + 3 \sqrt [3]{-1} \sqrt [3]{a} b^{3} x \sqrt [3]{\frac {1}{b}}} & \text {otherwise} \end {cases} \]
Verification of antiderivative is not currently implemented for this CAS.
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