Optimal. Leaf size=147 \[ \frac{\left (a^2 c^2-3 a b^2 c+b^4\right ) \log \left (a+b x+c x^2\right )}{2 c^5}+\frac{b \left (5 a^2 c^2-5 a b^2 c+b^4\right ) \tanh ^{-1}\left (\frac{b+2 c x}{\sqrt{b^2-4 a c}}\right )}{c^5 \sqrt{b^2-4 a c}}+\frac{x^2 \left (b^2-a c\right )}{2 c^3}-\frac{b x \left (b^2-2 a c\right )}{c^4}-\frac{b x^3}{3 c^2}+\frac{x^4}{4 c} \]
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Rubi [A] time = 0.136513, antiderivative size = 147, normalized size of antiderivative = 1., number of steps used = 7, number of rules used = 6, integrand size = 18, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.333, Rules used = {1354, 701, 634, 618, 206, 628} \[ \frac{\left (a^2 c^2-3 a b^2 c+b^4\right ) \log \left (a+b x+c x^2\right )}{2 c^5}+\frac{b \left (5 a^2 c^2-5 a b^2 c+b^4\right ) \tanh ^{-1}\left (\frac{b+2 c x}{\sqrt{b^2-4 a c}}\right )}{c^5 \sqrt{b^2-4 a c}}+\frac{x^2 \left (b^2-a c\right )}{2 c^3}-\frac{b x \left (b^2-2 a c\right )}{c^4}-\frac{b x^3}{3 c^2}+\frac{x^4}{4 c} \]
Antiderivative was successfully verified.
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Rule 1354
Rule 701
Rule 634
Rule 618
Rule 206
Rule 628
Rubi steps
\begin{align*} \int \frac{x^3}{c+\frac{a}{x^2}+\frac{b}{x}} \, dx &=\int \frac{x^5}{a+b x+c x^2} \, dx\\ &=\int \left (-\frac{b \left (b^2-2 a c\right )}{c^4}+\frac{\left (b^2-a c\right ) x}{c^3}-\frac{b x^2}{c^2}+\frac{x^3}{c}+\frac{a b \left (b^2-2 a c\right )+\left (b^4-3 a b^2 c+a^2 c^2\right ) x}{c^4 \left (a+b x+c x^2\right )}\right ) \, dx\\ &=-\frac{b \left (b^2-2 a c\right ) x}{c^4}+\frac{\left (b^2-a c\right ) x^2}{2 c^3}-\frac{b x^3}{3 c^2}+\frac{x^4}{4 c}+\frac{\int \frac{a b \left (b^2-2 a c\right )+\left (b^4-3 a b^2 c+a^2 c^2\right ) x}{a+b x+c x^2} \, dx}{c^4}\\ &=-\frac{b \left (b^2-2 a c\right ) x}{c^4}+\frac{\left (b^2-a c\right ) x^2}{2 c^3}-\frac{b x^3}{3 c^2}+\frac{x^4}{4 c}+\frac{\left (b^4-3 a b^2 c+a^2 c^2\right ) \int \frac{b+2 c x}{a+b x+c x^2} \, dx}{2 c^5}-\frac{\left (b \left (b^4-5 a b^2 c+5 a^2 c^2\right )\right ) \int \frac{1}{a+b x+c x^2} \, dx}{2 c^5}\\ &=-\frac{b \left (b^2-2 a c\right ) x}{c^4}+\frac{\left (b^2-a c\right ) x^2}{2 c^3}-\frac{b x^3}{3 c^2}+\frac{x^4}{4 c}+\frac{\left (b^4-3 a b^2 c+a^2 c^2\right ) \log \left (a+b x+c x^2\right )}{2 c^5}+\frac{\left (b \left (b^4-5 a b^2 c+5 a^2 c^2\right )\right ) \operatorname{Subst}\left (\int \frac{1}{b^2-4 a c-x^2} \, dx,x,b+2 c x\right )}{c^5}\\ &=-\frac{b \left (b^2-2 a c\right ) x}{c^4}+\frac{\left (b^2-a c\right ) x^2}{2 c^3}-\frac{b x^3}{3 c^2}+\frac{x^4}{4 c}+\frac{b \left (b^4-5 a b^2 c+5 a^2 c^2\right ) \tanh ^{-1}\left (\frac{b+2 c x}{\sqrt{b^2-4 a c}}\right )}{c^5 \sqrt{b^2-4 a c}}+\frac{\left (b^4-3 a b^2 c+a^2 c^2\right ) \log \left (a+b x+c x^2\right )}{2 c^5}\\ \end{align*}
Mathematica [A] time = 0.121937, size = 140, normalized size = 0.95 \[ \frac{6 \left (a^2 c^2-3 a b^2 c+b^4\right ) \log (a+x (b+c x))-\frac{12 b \left (5 a^2 c^2-5 a b^2 c+b^4\right ) \tan ^{-1}\left (\frac{b+2 c x}{\sqrt{4 a c-b^2}}\right )}{\sqrt{4 a c-b^2}}+c x \left (-4 b c \left (c x^2-6 a\right )+3 c^2 x \left (c x^2-2 a\right )+6 b^2 c x-12 b^3\right )}{12 c^5} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.006, size = 236, normalized size = 1.6 \begin{align*}{\frac{{x}^{4}}{4\,c}}-{\frac{b{x}^{3}}{3\,{c}^{2}}}-{\frac{{x}^{2}a}{2\,{c}^{2}}}+{\frac{{x}^{2}{b}^{2}}{2\,{c}^{3}}}+2\,{\frac{abx}{{c}^{3}}}-{\frac{{b}^{3}x}{{c}^{4}}}+{\frac{\ln \left ( c{x}^{2}+bx+a \right ){a}^{2}}{2\,{c}^{3}}}-{\frac{3\,\ln \left ( c{x}^{2}+bx+a \right ) a{b}^{2}}{2\,{c}^{4}}}+{\frac{\ln \left ( c{x}^{2}+bx+a \right ){b}^{4}}{2\,{c}^{5}}}-5\,{\frac{{a}^{2}b}{{c}^{3}\sqrt{4\,ac-{b}^{2}}}\arctan \left ({\frac{2\,cx+b}{\sqrt{4\,ac-{b}^{2}}}} \right ) }+5\,{\frac{a{b}^{3}}{{c}^{4}\sqrt{4\,ac-{b}^{2}}}\arctan \left ({\frac{2\,cx+b}{\sqrt{4\,ac-{b}^{2}}}} \right ) }-{\frac{{b}^{5}}{{c}^{5}}\arctan \left ({(2\,cx+b){\frac{1}{\sqrt{4\,ac-{b}^{2}}}}} \right ){\frac{1}{\sqrt{4\,ac-{b}^{2}}}}} \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 = 1.8236, size = 1006, normalized size = 6.84 \begin{align*} \left [\frac{3 \,{\left (b^{2} c^{4} - 4 \, a c^{5}\right )} x^{4} - 4 \,{\left (b^{3} c^{3} - 4 \, a b c^{4}\right )} x^{3} + 6 \,{\left (b^{4} c^{2} - 5 \, a b^{2} c^{3} + 4 \, a^{2} c^{4}\right )} x^{2} + 6 \,{\left (b^{5} - 5 \, a b^{3} c + 5 \, a^{2} b c^{2}\right )} \sqrt{b^{2} - 4 \, a c} \log \left (\frac{2 \, c^{2} x^{2} + 2 \, b c x + b^{2} - 2 \, a c + \sqrt{b^{2} - 4 \, a c}{\left (2 \, c x + b\right )}}{c x^{2} + b x + a}\right ) - 12 \,{\left (b^{5} c - 6 \, a b^{3} c^{2} + 8 \, a^{2} b c^{3}\right )} x + 6 \,{\left (b^{6} - 7 \, a b^{4} c + 13 \, a^{2} b^{2} c^{2} - 4 \, a^{3} c^{3}\right )} \log \left (c x^{2} + b x + a\right )}{12 \,{\left (b^{2} c^{5} - 4 \, a c^{6}\right )}}, \frac{3 \,{\left (b^{2} c^{4} - 4 \, a c^{5}\right )} x^{4} - 4 \,{\left (b^{3} c^{3} - 4 \, a b c^{4}\right )} x^{3} + 6 \,{\left (b^{4} c^{2} - 5 \, a b^{2} c^{3} + 4 \, a^{2} c^{4}\right )} x^{2} + 12 \,{\left (b^{5} - 5 \, a b^{3} c + 5 \, a^{2} b c^{2}\right )} \sqrt{-b^{2} + 4 \, a c} \arctan \left (-\frac{\sqrt{-b^{2} + 4 \, a c}{\left (2 \, c x + b\right )}}{b^{2} - 4 \, a c}\right ) - 12 \,{\left (b^{5} c - 6 \, a b^{3} c^{2} + 8 \, a^{2} b c^{3}\right )} x + 6 \,{\left (b^{6} - 7 \, a b^{4} c + 13 \, a^{2} b^{2} c^{2} - 4 \, a^{3} c^{3}\right )} \log \left (c x^{2} + b x + a\right )}{12 \,{\left (b^{2} c^{5} - 4 \, a c^{6}\right )}}\right ] \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [B] time = 1.04048, size = 600, normalized size = 4.08 \begin{align*} - \frac{b x^{3}}{3 c^{2}} + \left (- \frac{b \sqrt{- 4 a c + b^{2}} \left (5 a^{2} c^{2} - 5 a b^{2} c + b^{4}\right )}{2 c^{5} \left (4 a c - b^{2}\right )} + \frac{a^{2} c^{2} - 3 a b^{2} c + b^{4}}{2 c^{5}}\right ) \log{\left (x + \frac{2 a^{3} c^{2} - 4 a^{2} b^{2} c + a b^{4} - 4 a c^{5} \left (- \frac{b \sqrt{- 4 a c + b^{2}} \left (5 a^{2} c^{2} - 5 a b^{2} c + b^{4}\right )}{2 c^{5} \left (4 a c - b^{2}\right )} + \frac{a^{2} c^{2} - 3 a b^{2} c + b^{4}}{2 c^{5}}\right ) + b^{2} c^{4} \left (- \frac{b \sqrt{- 4 a c + b^{2}} \left (5 a^{2} c^{2} - 5 a b^{2} c + b^{4}\right )}{2 c^{5} \left (4 a c - b^{2}\right )} + \frac{a^{2} c^{2} - 3 a b^{2} c + b^{4}}{2 c^{5}}\right )}{5 a^{2} b c^{2} - 5 a b^{3} c + b^{5}} \right )} + \left (\frac{b \sqrt{- 4 a c + b^{2}} \left (5 a^{2} c^{2} - 5 a b^{2} c + b^{4}\right )}{2 c^{5} \left (4 a c - b^{2}\right )} + \frac{a^{2} c^{2} - 3 a b^{2} c + b^{4}}{2 c^{5}}\right ) \log{\left (x + \frac{2 a^{3} c^{2} - 4 a^{2} b^{2} c + a b^{4} - 4 a c^{5} \left (\frac{b \sqrt{- 4 a c + b^{2}} \left (5 a^{2} c^{2} - 5 a b^{2} c + b^{4}\right )}{2 c^{5} \left (4 a c - b^{2}\right )} + \frac{a^{2} c^{2} - 3 a b^{2} c + b^{4}}{2 c^{5}}\right ) + b^{2} c^{4} \left (\frac{b \sqrt{- 4 a c + b^{2}} \left (5 a^{2} c^{2} - 5 a b^{2} c + b^{4}\right )}{2 c^{5} \left (4 a c - b^{2}\right )} + \frac{a^{2} c^{2} - 3 a b^{2} c + b^{4}}{2 c^{5}}\right )}{5 a^{2} b c^{2} - 5 a b^{3} c + b^{5}} \right )} + \frac{x^{4}}{4 c} - \frac{x^{2} \left (a c - b^{2}\right )}{2 c^{3}} + \frac{x \left (2 a b c - b^{3}\right )}{c^{4}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.10676, size = 196, normalized size = 1.33 \begin{align*} \frac{3 \, c^{3} x^{4} - 4 \, b c^{2} x^{3} + 6 \, b^{2} c x^{2} - 6 \, a c^{2} x^{2} - 12 \, b^{3} x + 24 \, a b c x}{12 \, c^{4}} + \frac{{\left (b^{4} - 3 \, a b^{2} c + a^{2} c^{2}\right )} \log \left (c x^{2} + b x + a\right )}{2 \, c^{5}} - \frac{{\left (b^{5} - 5 \, a b^{3} c + 5 \, a^{2} b c^{2}\right )} \arctan \left (\frac{2 \, c x + b}{\sqrt{-b^{2} + 4 \, a c}}\right )}{\sqrt{-b^{2} + 4 \, a c} c^{5}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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