Optimal. Leaf size=94 \[ -\frac{x (5 A b-9 a B)}{8 b^3 \left (a+b x^2\right )}+\frac{a x (A b-a B)}{4 b^3 \left (a+b x^2\right )^2}+\frac{3 (A b-5 a B) \tan ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{a}}\right )}{8 \sqrt{a} b^{7/2}}+\frac{B x}{b^3} \]
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Rubi [A] time = 0.0862616, antiderivative size = 94, normalized size of antiderivative = 1., number of steps used = 4, number of rules used = 4, integrand size = 20, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.2, Rules used = {455, 1157, 388, 205} \[ -\frac{x (5 A b-9 a B)}{8 b^3 \left (a+b x^2\right )}+\frac{a x (A b-a B)}{4 b^3 \left (a+b x^2\right )^2}+\frac{3 (A b-5 a B) \tan ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{a}}\right )}{8 \sqrt{a} b^{7/2}}+\frac{B x}{b^3} \]
Antiderivative was successfully verified.
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Rule 455
Rule 1157
Rule 388
Rule 205
Rubi steps
\begin{align*} \int \frac{x^4 \left (A+B x^2\right )}{\left (a+b x^2\right )^3} \, dx &=\frac{a (A b-a B) x}{4 b^3 \left (a+b x^2\right )^2}-\frac{\int \frac{a (A b-a B)-4 b (A b-a B) x^2-4 b^2 B x^4}{\left (a+b x^2\right )^2} \, dx}{4 b^3}\\ &=\frac{a (A b-a B) x}{4 b^3 \left (a+b x^2\right )^2}-\frac{(5 A b-9 a B) x}{8 b^3 \left (a+b x^2\right )}+\frac{\int \frac{a (3 A b-7 a B)+8 a b B x^2}{a+b x^2} \, dx}{8 a b^3}\\ &=\frac{B x}{b^3}+\frac{a (A b-a B) x}{4 b^3 \left (a+b x^2\right )^2}-\frac{(5 A b-9 a B) x}{8 b^3 \left (a+b x^2\right )}+\frac{(3 (A b-5 a B)) \int \frac{1}{a+b x^2} \, dx}{8 b^3}\\ &=\frac{B x}{b^3}+\frac{a (A b-a B) x}{4 b^3 \left (a+b x^2\right )^2}-\frac{(5 A b-9 a B) x}{8 b^3 \left (a+b x^2\right )}+\frac{3 (A b-5 a B) \tan ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{a}}\right )}{8 \sqrt{a} b^{7/2}}\\ \end{align*}
Mathematica [A] time = 0.0751205, size = 91, normalized size = 0.97 \[ \frac{x \left (15 a^2 B+a \left (25 b B x^2-3 A b\right )+b^2 x^2 \left (8 B x^2-5 A\right )\right )}{8 b^3 \left (a+b x^2\right )^2}+\frac{3 (A b-5 a B) \tan ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{a}}\right )}{8 \sqrt{a} b^{7/2}} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.009, size = 122, normalized size = 1.3 \begin{align*}{\frac{Bx}{{b}^{3}}}-{\frac{5\,A{x}^{3}}{8\,b \left ( b{x}^{2}+a \right ) ^{2}}}+{\frac{9\,B{x}^{3}a}{8\,{b}^{2} \left ( b{x}^{2}+a \right ) ^{2}}}-{\frac{3\,aAx}{8\,{b}^{2} \left ( b{x}^{2}+a \right ) ^{2}}}+{\frac{7\,{a}^{2}Bx}{8\,{b}^{3} \left ( b{x}^{2}+a \right ) ^{2}}}+{\frac{3\,A}{8\,{b}^{2}}\arctan \left ({bx{\frac{1}{\sqrt{ab}}}} \right ){\frac{1}{\sqrt{ab}}}}-{\frac{15\,Ba}{8\,{b}^{3}}\arctan \left ({bx{\frac{1}{\sqrt{ab}}}} \right ){\frac{1}{\sqrt{ab}}}} \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 = 1.26305, size = 672, normalized size = 7.15 \begin{align*} \left [\frac{16 \, B a b^{3} x^{5} + 10 \,{\left (5 \, B a^{2} b^{2} - A a b^{3}\right )} x^{3} + 3 \,{\left ({\left (5 \, B a b^{2} - A b^{3}\right )} x^{4} + 5 \, B a^{3} - A a^{2} b + 2 \,{\left (5 \, B a^{2} b - A a b^{2}\right )} x^{2}\right )} \sqrt{-a b} \log \left (\frac{b x^{2} - 2 \, \sqrt{-a b} x - a}{b x^{2} + a}\right ) + 6 \,{\left (5 \, B a^{3} b - A a^{2} b^{2}\right )} x}{16 \,{\left (a b^{6} x^{4} + 2 \, a^{2} b^{5} x^{2} + a^{3} b^{4}\right )}}, \frac{8 \, B a b^{3} x^{5} + 5 \,{\left (5 \, B a^{2} b^{2} - A a b^{3}\right )} x^{3} - 3 \,{\left ({\left (5 \, B a b^{2} - A b^{3}\right )} x^{4} + 5 \, B a^{3} - A a^{2} b + 2 \,{\left (5 \, B a^{2} b - A a b^{2}\right )} x^{2}\right )} \sqrt{a b} \arctan \left (\frac{\sqrt{a b} x}{a}\right ) + 3 \,{\left (5 \, B a^{3} b - A a^{2} b^{2}\right )} x}{8 \,{\left (a b^{6} x^{4} + 2 \, a^{2} b^{5} x^{2} + a^{3} b^{4}\right )}}\right ] \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [B] time = 1.21583, size = 194, normalized size = 2.06 \begin{align*} \frac{B x}{b^{3}} + \frac{3 \sqrt{- \frac{1}{a b^{7}}} \left (- A b + 5 B a\right ) \log{\left (- \frac{3 a b^{3} \sqrt{- \frac{1}{a b^{7}}} \left (- A b + 5 B a\right )}{- 3 A b + 15 B a} + x \right )}}{16} - \frac{3 \sqrt{- \frac{1}{a b^{7}}} \left (- A b + 5 B a\right ) \log{\left (\frac{3 a b^{3} \sqrt{- \frac{1}{a b^{7}}} \left (- A b + 5 B a\right )}{- 3 A b + 15 B a} + x \right )}}{16} + \frac{x^{3} \left (- 5 A b^{2} + 9 B a b\right ) + x \left (- 3 A a b + 7 B a^{2}\right )}{8 a^{2} b^{3} + 16 a b^{4} x^{2} + 8 b^{5} x^{4}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.16061, size = 108, normalized size = 1.15 \begin{align*} \frac{B x}{b^{3}} - \frac{3 \,{\left (5 \, B a - A b\right )} \arctan \left (\frac{b x}{\sqrt{a b}}\right )}{8 \, \sqrt{a b} b^{3}} + \frac{9 \, B a b x^{3} - 5 \, A b^{2} x^{3} + 7 \, B a^{2} x - 3 \, A a b x}{8 \,{\left (b x^{2} + a\right )}^{2} b^{3}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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