Optimal. Leaf size=173 \[ -\frac{(b c-a d)^2 \log \left (c^{2/3}-\sqrt [3]{c} \sqrt [3]{d} x+d^{2/3} x^2\right )}{6 c^{2/3} d^{7/3}}+\frac{(b c-a d)^2 \log \left (\sqrt [3]{c}+\sqrt [3]{d} x\right )}{3 c^{2/3} d^{7/3}}-\frac{(b c-a d)^2 \tan ^{-1}\left (\frac{\sqrt [3]{c}-2 \sqrt [3]{d} x}{\sqrt{3} \sqrt [3]{c}}\right )}{\sqrt{3} c^{2/3} d^{7/3}}-\frac{b x (b c-2 a d)}{d^2}+\frac{b^2 x^4}{4 d} \]
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Rubi [A] time = 0.128459, antiderivative size = 173, normalized size of antiderivative = 1., number of steps used = 8, number of rules used = 7, integrand size = 19, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.368, Rules used = {390, 200, 31, 634, 617, 204, 628} \[ -\frac{(b c-a d)^2 \log \left (c^{2/3}-\sqrt [3]{c} \sqrt [3]{d} x+d^{2/3} x^2\right )}{6 c^{2/3} d^{7/3}}+\frac{(b c-a d)^2 \log \left (\sqrt [3]{c}+\sqrt [3]{d} x\right )}{3 c^{2/3} d^{7/3}}-\frac{(b c-a d)^2 \tan ^{-1}\left (\frac{\sqrt [3]{c}-2 \sqrt [3]{d} x}{\sqrt{3} \sqrt [3]{c}}\right )}{\sqrt{3} c^{2/3} d^{7/3}}-\frac{b x (b c-2 a d)}{d^2}+\frac{b^2 x^4}{4 d} \]
Antiderivative was successfully verified.
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Rule 390
Rule 200
Rule 31
Rule 634
Rule 617
Rule 204
Rule 628
Rubi steps
\begin{align*} \int \frac{\left (a+b x^3\right )^2}{c+d x^3} \, dx &=\int \left (-\frac{b (b c-2 a d)}{d^2}+\frac{b^2 x^3}{d}+\frac{b^2 c^2-2 a b c d+a^2 d^2}{d^2 \left (c+d x^3\right )}\right ) \, dx\\ &=-\frac{b (b c-2 a d) x}{d^2}+\frac{b^2 x^4}{4 d}+\frac{(b c-a d)^2 \int \frac{1}{c+d x^3} \, dx}{d^2}\\ &=-\frac{b (b c-2 a d) x}{d^2}+\frac{b^2 x^4}{4 d}+\frac{(b c-a d)^2 \int \frac{1}{\sqrt [3]{c}+\sqrt [3]{d} x} \, dx}{3 c^{2/3} d^2}+\frac{(b c-a d)^2 \int \frac{2 \sqrt [3]{c}-\sqrt [3]{d} x}{c^{2/3}-\sqrt [3]{c} \sqrt [3]{d} x+d^{2/3} x^2} \, dx}{3 c^{2/3} d^2}\\ &=-\frac{b (b c-2 a d) x}{d^2}+\frac{b^2 x^4}{4 d}+\frac{(b c-a d)^2 \log \left (\sqrt [3]{c}+\sqrt [3]{d} x\right )}{3 c^{2/3} d^{7/3}}-\frac{(b c-a d)^2 \int \frac{-\sqrt [3]{c} \sqrt [3]{d}+2 d^{2/3} x}{c^{2/3}-\sqrt [3]{c} \sqrt [3]{d} x+d^{2/3} x^2} \, dx}{6 c^{2/3} d^{7/3}}+\frac{(b c-a d)^2 \int \frac{1}{c^{2/3}-\sqrt [3]{c} \sqrt [3]{d} x+d^{2/3} x^2} \, dx}{2 \sqrt [3]{c} d^2}\\ &=-\frac{b (b c-2 a d) x}{d^2}+\frac{b^2 x^4}{4 d}+\frac{(b c-a d)^2 \log \left (\sqrt [3]{c}+\sqrt [3]{d} x\right )}{3 c^{2/3} d^{7/3}}-\frac{(b c-a d)^2 \log \left (c^{2/3}-\sqrt [3]{c} \sqrt [3]{d} x+d^{2/3} x^2\right )}{6 c^{2/3} d^{7/3}}+\frac{(b c-a d)^2 \operatorname{Subst}\left (\int \frac{1}{-3-x^2} \, dx,x,1-\frac{2 \sqrt [3]{d} x}{\sqrt [3]{c}}\right )}{c^{2/3} d^{7/3}}\\ &=-\frac{b (b c-2 a d) x}{d^2}+\frac{b^2 x^4}{4 d}-\frac{(b c-a d)^2 \tan ^{-1}\left (\frac{\sqrt [3]{c}-2 \sqrt [3]{d} x}{\sqrt{3} \sqrt [3]{c}}\right )}{\sqrt{3} c^{2/3} d^{7/3}}+\frac{(b c-a d)^2 \log \left (\sqrt [3]{c}+\sqrt [3]{d} x\right )}{3 c^{2/3} d^{7/3}}-\frac{(b c-a d)^2 \log \left (c^{2/3}-\sqrt [3]{c} \sqrt [3]{d} x+d^{2/3} x^2\right )}{6 c^{2/3} d^{7/3}}\\ \end{align*}
Mathematica [A] time = 0.0908675, size = 167, normalized size = 0.97 \[ \frac{-2 (b c-a d)^2 \log \left (c^{2/3}-\sqrt [3]{c} \sqrt [3]{d} x+d^{2/3} x^2\right )-12 b c^{2/3} \sqrt [3]{d} x (b c-2 a d)+4 (b c-a d)^2 \log \left (\sqrt [3]{c}+\sqrt [3]{d} x\right )+4 \sqrt{3} (b c-a d)^2 \tan ^{-1}\left (\frac{2 \sqrt [3]{d} x-\sqrt [3]{c}}{\sqrt{3} \sqrt [3]{c}}\right )+3 b^2 c^{2/3} d^{4/3} x^4}{12 c^{2/3} d^{7/3}} \]
Antiderivative was successfully verified.
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Maple [B] time = 0.003, size = 334, normalized size = 1.9 \begin{align*}{\frac{{b}^{2}{x}^{4}}{4\,d}}+2\,{\frac{xab}{d}}-{\frac{{b}^{2}xc}{{d}^{2}}}+{\frac{{a}^{2}}{3\,d}\ln \left ( x+\sqrt [3]{{\frac{c}{d}}} \right ) \left ({\frac{c}{d}} \right ) ^{-{\frac{2}{3}}}}-{\frac{2\,abc}{3\,{d}^{2}}\ln \left ( x+\sqrt [3]{{\frac{c}{d}}} \right ) \left ({\frac{c}{d}} \right ) ^{-{\frac{2}{3}}}}+{\frac{{b}^{2}{c}^{2}}{3\,{d}^{3}}\ln \left ( x+\sqrt [3]{{\frac{c}{d}}} \right ) \left ({\frac{c}{d}} \right ) ^{-{\frac{2}{3}}}}-{\frac{{a}^{2}}{6\,d}\ln \left ({x}^{2}-\sqrt [3]{{\frac{c}{d}}}x+ \left ({\frac{c}{d}} \right ) ^{{\frac{2}{3}}} \right ) \left ({\frac{c}{d}} \right ) ^{-{\frac{2}{3}}}}+{\frac{abc}{3\,{d}^{2}}\ln \left ({x}^{2}-\sqrt [3]{{\frac{c}{d}}}x+ \left ({\frac{c}{d}} \right ) ^{{\frac{2}{3}}} \right ) \left ({\frac{c}{d}} \right ) ^{-{\frac{2}{3}}}}-{\frac{{b}^{2}{c}^{2}}{6\,{d}^{3}}\ln \left ({x}^{2}-\sqrt [3]{{\frac{c}{d}}}x+ \left ({\frac{c}{d}} \right ) ^{{\frac{2}{3}}} \right ) \left ({\frac{c}{d}} \right ) ^{-{\frac{2}{3}}}}+{\frac{\sqrt{3}{a}^{2}}{3\,d}\arctan \left ({\frac{\sqrt{3}}{3} \left ( 2\,{x{\frac{1}{\sqrt [3]{{\frac{c}{d}}}}}}-1 \right ) } \right ) \left ({\frac{c}{d}} \right ) ^{-{\frac{2}{3}}}}-{\frac{2\,\sqrt{3}cab}{3\,{d}^{2}}\arctan \left ({\frac{\sqrt{3}}{3} \left ( 2\,{x{\frac{1}{\sqrt [3]{{\frac{c}{d}}}}}}-1 \right ) } \right ) \left ({\frac{c}{d}} \right ) ^{-{\frac{2}{3}}}}+{\frac{\sqrt{3}{b}^{2}{c}^{2}}{3\,{d}^{3}}\arctan \left ({\frac{\sqrt{3}}{3} \left ( 2\,{x{\frac{1}{\sqrt [3]{{\frac{c}{d}}}}}}-1 \right ) } \right ) \left ({\frac{c}{d}} \right ) ^{-{\frac{2}{3}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: ValueError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.68486, size = 1183, normalized size = 6.84 \begin{align*} \left [\frac{3 \, b^{2} c^{2} d^{2} x^{4} + 6 \, \sqrt{\frac{1}{3}}{\left (b^{2} c^{3} d - 2 \, a b c^{2} d^{2} + a^{2} c d^{3}\right )} \sqrt{-\frac{\left (c^{2} d\right )^{\frac{1}{3}}}{d}} \log \left (\frac{2 \, c d x^{3} - 3 \, \left (c^{2} d\right )^{\frac{1}{3}} c x - c^{2} + 3 \, \sqrt{\frac{1}{3}}{\left (2 \, c d x^{2} + \left (c^{2} d\right )^{\frac{2}{3}} x - \left (c^{2} d\right )^{\frac{1}{3}} c\right )} \sqrt{-\frac{\left (c^{2} d\right )^{\frac{1}{3}}}{d}}}{d x^{3} + c}\right ) - 2 \,{\left (b^{2} c^{2} - 2 \, a b c d + a^{2} d^{2}\right )} \left (c^{2} d\right )^{\frac{2}{3}} \log \left (c d x^{2} - \left (c^{2} d\right )^{\frac{2}{3}} x + \left (c^{2} d\right )^{\frac{1}{3}} c\right ) + 4 \,{\left (b^{2} c^{2} - 2 \, a b c d + a^{2} d^{2}\right )} \left (c^{2} d\right )^{\frac{2}{3}} \log \left (c d x + \left (c^{2} d\right )^{\frac{2}{3}}\right ) - 12 \,{\left (b^{2} c^{3} d - 2 \, a b c^{2} d^{2}\right )} x}{12 \, c^{2} d^{3}}, \frac{3 \, b^{2} c^{2} d^{2} x^{4} + 12 \, \sqrt{\frac{1}{3}}{\left (b^{2} c^{3} d - 2 \, a b c^{2} d^{2} + a^{2} c d^{3}\right )} \sqrt{\frac{\left (c^{2} d\right )^{\frac{1}{3}}}{d}} \arctan \left (\frac{\sqrt{\frac{1}{3}}{\left (2 \, \left (c^{2} d\right )^{\frac{2}{3}} x - \left (c^{2} d\right )^{\frac{1}{3}} c\right )} \sqrt{\frac{\left (c^{2} d\right )^{\frac{1}{3}}}{d}}}{c^{2}}\right ) - 2 \,{\left (b^{2} c^{2} - 2 \, a b c d + a^{2} d^{2}\right )} \left (c^{2} d\right )^{\frac{2}{3}} \log \left (c d x^{2} - \left (c^{2} d\right )^{\frac{2}{3}} x + \left (c^{2} d\right )^{\frac{1}{3}} c\right ) + 4 \,{\left (b^{2} c^{2} - 2 \, a b c d + a^{2} d^{2}\right )} \left (c^{2} d\right )^{\frac{2}{3}} \log \left (c d x + \left (c^{2} d\right )^{\frac{2}{3}}\right ) - 12 \,{\left (b^{2} c^{3} d - 2 \, a b c^{2} d^{2}\right )} x}{12 \, c^{2} d^{3}}\right ] \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 1.30891, size = 156, normalized size = 0.9 \begin{align*} \frac{b^{2} x^{4}}{4 d} + \operatorname{RootSum}{\left (27 t^{3} c^{2} d^{7} - a^{6} d^{6} + 6 a^{5} b c d^{5} - 15 a^{4} b^{2} c^{2} d^{4} + 20 a^{3} b^{3} c^{3} d^{3} - 15 a^{2} b^{4} c^{4} d^{2} + 6 a b^{5} c^{5} d - b^{6} c^{6}, \left ( t \mapsto t \log{\left (\frac{3 t c d^{2}}{a^{2} d^{2} - 2 a b c d + b^{2} c^{2}} + x \right )} \right )\right )} + \frac{x \left (2 a b d - b^{2} c\right )}{d^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.24444, size = 336, normalized size = 1.94 \begin{align*} \frac{\sqrt{3}{\left (\left (-c d^{2}\right )^{\frac{1}{3}} b^{2} c^{2} - 2 \, \left (-c d^{2}\right )^{\frac{1}{3}} a b c d + \left (-c d^{2}\right )^{\frac{1}{3}} a^{2} d^{2}\right )} \arctan \left (\frac{\sqrt{3}{\left (2 \, x + \left (-\frac{c}{d}\right )^{\frac{1}{3}}\right )}}{3 \, \left (-\frac{c}{d}\right )^{\frac{1}{3}}}\right )}{3 \, c d^{3}} + \frac{{\left (\left (-c d^{2}\right )^{\frac{1}{3}} b^{2} c^{2} - 2 \, \left (-c d^{2}\right )^{\frac{1}{3}} a b c d + \left (-c d^{2}\right )^{\frac{1}{3}} a^{2} d^{2}\right )} \log \left (x^{2} + x \left (-\frac{c}{d}\right )^{\frac{1}{3}} + \left (-\frac{c}{d}\right )^{\frac{2}{3}}\right )}{6 \, c d^{3}} - \frac{{\left (b^{2} c^{2} d^{2} - 2 \, a b c d^{3} + a^{2} d^{4}\right )} \left (-\frac{c}{d}\right )^{\frac{1}{3}} \log \left ({\left | x - \left (-\frac{c}{d}\right )^{\frac{1}{3}} \right |}\right )}{3 \, c d^{4}} + \frac{b^{2} d^{3} x^{4} - 4 \, b^{2} c d^{2} x + 8 \, a b d^{3} x}{4 \, d^{4}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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