Optimal. Leaf size=121 \[ -\frac{\left (a c e+b^2 (-e)+b c d\right ) \log \left (a+b x+c x^2\right )}{2 c^3}-\frac{\left (3 a b c e-2 a c^2 d+b^2 c d+b^3 (-e)\right ) \tanh ^{-1}\left (\frac{b+2 c x}{\sqrt{b^2-4 a c}}\right )}{c^3 \sqrt{b^2-4 a c}}+\frac{x (c d-b e)}{c^2}+\frac{e x^2}{2 c} \]
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Rubi [A] time = 0.148198, antiderivative size = 121, normalized size of antiderivative = 1., number of steps used = 6, number of rules used = 5, integrand size = 21, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.238, Rules used = {800, 634, 618, 206, 628} \[ -\frac{\left (a c e+b^2 (-e)+b c d\right ) \log \left (a+b x+c x^2\right )}{2 c^3}-\frac{\left (3 a b c e-2 a c^2 d+b^2 c d+b^3 (-e)\right ) \tanh ^{-1}\left (\frac{b+2 c x}{\sqrt{b^2-4 a c}}\right )}{c^3 \sqrt{b^2-4 a c}}+\frac{x (c d-b e)}{c^2}+\frac{e x^2}{2 c} \]
Antiderivative was successfully verified.
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Rule 800
Rule 634
Rule 618
Rule 206
Rule 628
Rubi steps
\begin{align*} \int \frac{x^2 (d+e x)}{a+b x+c x^2} \, dx &=\int \left (\frac{c d-b e}{c^2}+\frac{e x}{c}-\frac{a (c d-b e)+\left (b c d-b^2 e+a c e\right ) x}{c^2 \left (a+b x+c x^2\right )}\right ) \, dx\\ &=\frac{(c d-b e) x}{c^2}+\frac{e x^2}{2 c}-\frac{\int \frac{a (c d-b e)+\left (b c d-b^2 e+a c e\right ) x}{a+b x+c x^2} \, dx}{c^2}\\ &=\frac{(c d-b e) x}{c^2}+\frac{e x^2}{2 c}-\frac{\left (b c d-b^2 e+a c e\right ) \int \frac{b+2 c x}{a+b x+c x^2} \, dx}{2 c^3}+\frac{\left (b^2 c d-2 a c^2 d-b^3 e+3 a b c e\right ) \int \frac{1}{a+b x+c x^2} \, dx}{2 c^3}\\ &=\frac{(c d-b e) x}{c^2}+\frac{e x^2}{2 c}-\frac{\left (b c d-b^2 e+a c e\right ) \log \left (a+b x+c x^2\right )}{2 c^3}-\frac{\left (b^2 c d-2 a c^2 d-b^3 e+3 a b c e\right ) \operatorname{Subst}\left (\int \frac{1}{b^2-4 a c-x^2} \, dx,x,b+2 c x\right )}{c^3}\\ &=\frac{(c d-b e) x}{c^2}+\frac{e x^2}{2 c}-\frac{\left (b^2 c d-2 a c^2 d-b^3 e+3 a b c e\right ) \tanh ^{-1}\left (\frac{b+2 c x}{\sqrt{b^2-4 a c}}\right )}{c^3 \sqrt{b^2-4 a c}}-\frac{\left (b c d-b^2 e+a c e\right ) \log \left (a+b x+c x^2\right )}{2 c^3}\\ \end{align*}
Mathematica [A] time = 0.0787626, size = 119, normalized size = 0.98 \[ \frac{\frac{2 \left (3 a b c e-2 a c^2 d+b^2 c d+b^3 (-e)\right ) \tan ^{-1}\left (\frac{b+2 c x}{\sqrt{4 a c-b^2}}\right )}{\sqrt{4 a c-b^2}}+\left (-a c e+b^2 e-b c d\right ) \log (a+x (b+c x))+2 c x (c d-b e)+c^2 e x^2}{2 c^3} \]
Antiderivative was successfully verified.
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Maple [B] time = 0.003, size = 241, normalized size = 2. \begin{align*}{\frac{e{x}^{2}}{2\,c}}-{\frac{bex}{{c}^{2}}}+{\frac{dx}{c}}-{\frac{\ln \left ( c{x}^{2}+bx+a \right ) ae}{2\,{c}^{2}}}+{\frac{\ln \left ( c{x}^{2}+bx+a \right ){b}^{2}e}{2\,{c}^{3}}}-{\frac{\ln \left ( c{x}^{2}+bx+a \right ) bd}{2\,{c}^{2}}}+3\,{\frac{abe}{{c}^{2}\sqrt{4\,ac-{b}^{2}}}\arctan \left ({\frac{2\,cx+b}{\sqrt{4\,ac-{b}^{2}}}} \right ) }-2\,{\frac{ad}{c\sqrt{4\,ac-{b}^{2}}}\arctan \left ({\frac{2\,cx+b}{\sqrt{4\,ac-{b}^{2}}}} \right ) }-{\frac{{b}^{3}e}{{c}^{3}}\arctan \left ({(2\,cx+b){\frac{1}{\sqrt{4\,ac-{b}^{2}}}}} \right ){\frac{1}{\sqrt{4\,ac-{b}^{2}}}}}+{\frac{{b}^{2}d}{{c}^{2}}\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 = 1.56432, size = 880, normalized size = 7.27 \begin{align*} \left [\frac{{\left (b^{2} c^{2} - 4 \, a c^{3}\right )} e x^{2} + \sqrt{b^{2} - 4 \, a c}{\left ({\left (b^{2} c - 2 \, a c^{2}\right )} d -{\left (b^{3} - 3 \, a b c\right )} e\right )} \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 ) + 2 \,{\left ({\left (b^{2} c^{2} - 4 \, a c^{3}\right )} d -{\left (b^{3} c - 4 \, a b c^{2}\right )} e\right )} x -{\left ({\left (b^{3} c - 4 \, a b c^{2}\right )} d -{\left (b^{4} - 5 \, a b^{2} c + 4 \, a^{2} c^{2}\right )} e\right )} \log \left (c x^{2} + b x + a\right )}{2 \,{\left (b^{2} c^{3} - 4 \, a c^{4}\right )}}, \frac{{\left (b^{2} c^{2} - 4 \, a c^{3}\right )} e x^{2} - 2 \, \sqrt{-b^{2} + 4 \, a c}{\left ({\left (b^{2} c - 2 \, a c^{2}\right )} d -{\left (b^{3} - 3 \, a b c\right )} e\right )} \arctan \left (-\frac{\sqrt{-b^{2} + 4 \, a c}{\left (2 \, c x + b\right )}}{b^{2} - 4 \, a c}\right ) + 2 \,{\left ({\left (b^{2} c^{2} - 4 \, a c^{3}\right )} d -{\left (b^{3} c - 4 \, a b c^{2}\right )} e\right )} x -{\left ({\left (b^{3} c - 4 \, a b c^{2}\right )} d -{\left (b^{4} - 5 \, a b^{2} c + 4 \, a^{2} c^{2}\right )} e\right )} \log \left (c x^{2} + b x + a\right )}{2 \,{\left (b^{2} c^{3} - 4 \, a c^{4}\right )}}\right ] \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [B] time = 2.28383, size = 609, normalized size = 5.03 \begin{align*} \left (- \frac{\sqrt{- 4 a c + b^{2}} \left (3 a b c e - 2 a c^{2} d - b^{3} e + b^{2} c d\right )}{2 c^{3} \left (4 a c - b^{2}\right )} - \frac{a c e - b^{2} e + b c d}{2 c^{3}}\right ) \log{\left (x + \frac{2 a^{2} c e - a b^{2} e + a b c d + 4 a c^{3} \left (- \frac{\sqrt{- 4 a c + b^{2}} \left (3 a b c e - 2 a c^{2} d - b^{3} e + b^{2} c d\right )}{2 c^{3} \left (4 a c - b^{2}\right )} - \frac{a c e - b^{2} e + b c d}{2 c^{3}}\right ) - b^{2} c^{2} \left (- \frac{\sqrt{- 4 a c + b^{2}} \left (3 a b c e - 2 a c^{2} d - b^{3} e + b^{2} c d\right )}{2 c^{3} \left (4 a c - b^{2}\right )} - \frac{a c e - b^{2} e + b c d}{2 c^{3}}\right )}{3 a b c e - 2 a c^{2} d - b^{3} e + b^{2} c d} \right )} + \left (\frac{\sqrt{- 4 a c + b^{2}} \left (3 a b c e - 2 a c^{2} d - b^{3} e + b^{2} c d\right )}{2 c^{3} \left (4 a c - b^{2}\right )} - \frac{a c e - b^{2} e + b c d}{2 c^{3}}\right ) \log{\left (x + \frac{2 a^{2} c e - a b^{2} e + a b c d + 4 a c^{3} \left (\frac{\sqrt{- 4 a c + b^{2}} \left (3 a b c e - 2 a c^{2} d - b^{3} e + b^{2} c d\right )}{2 c^{3} \left (4 a c - b^{2}\right )} - \frac{a c e - b^{2} e + b c d}{2 c^{3}}\right ) - b^{2} c^{2} \left (\frac{\sqrt{- 4 a c + b^{2}} \left (3 a b c e - 2 a c^{2} d - b^{3} e + b^{2} c d\right )}{2 c^{3} \left (4 a c - b^{2}\right )} - \frac{a c e - b^{2} e + b c d}{2 c^{3}}\right )}{3 a b c e - 2 a c^{2} d - b^{3} e + b^{2} c d} \right )} + \frac{e x^{2}}{2 c} - \frac{x \left (b e - c d\right )}{c^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.32579, size = 165, normalized size = 1.36 \begin{align*} \frac{c x^{2} e + 2 \, c d x - 2 \, b x e}{2 \, c^{2}} - \frac{{\left (b c d - b^{2} e + a c e\right )} \log \left (c x^{2} + b x + a\right )}{2 \, c^{3}} + \frac{{\left (b^{2} c d - 2 \, a c^{2} d - b^{3} e + 3 \, a b c e\right )} \arctan \left (\frac{2 \, c x + b}{\sqrt{-b^{2} + 4 \, a c}}\right )}{\sqrt{-b^{2} + 4 \, a c} c^{3}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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